Answer:
A. 6,000 years
Explanation:
Original sample N = 60 g
The half life of N/2 is 3000yrs
"""""""""""""""""""N/4 is 6000yrs
N/4 ===> 15 gram
it takes 6000yrs to decrease to 15grams
Answer:
6,000
Explanation:
2. What facilitated the variety of species on earth?
Answer:
evelution
Explanation:
If you treat items in stores as your own you will be ________to damage the item. a. less likely c. unable b. more likely d. willing
When people treat store items as if they were their own, they are less likely to damage them as they tend to handle them more carefully.
Explanation:If you treat items in stores as your own, you will be less likely to damage the item. The correct answer to fill in the blank would be 'a. less likely'. This question is based on the understanding of personal responsibility and behavior in social contexts. Treating items with care as if they were your own usually means you will handle them carefully to avoid any harm or damage. On the contrary, if you do not consider the items as your own or do not feel any connection or responsibility towards them, you might not be as careful, and hence, could be more likely to damage them.
In what ways did journey to the center of the earth show that Jules Verne has some understanding of the earth layers
Answer:
In his text Jules Verne had somehow drawn an representation of earth's various layers, like an internal hot layer just from approximation.So, one can imply that he had some understanding of earth layers.
Explanation:
During the time that "Journey to the center of the earth" was written the various layers of earth were not discovered.Jules Verne in his science fiction mentioned the various layers, which were not exactly accurate but it showed that he was curious about how earth was made.He speculated an internal hot layer just on the fact that volcanoes spew out magma.Hawaii has a warm, wet, tropical climate. Which of these is most likely to break down newly formed rock in Hawaii?(1 point)
Answer:
root wedging
Explanation:
Due the tropical climate, there will be presence of trees which will aid rooting wedging in Weathering of rocks
What are common non vascular plants A Sporophytes B Seaweeds C hornworts or D Gametophytes
Answer:
hornworts are an example of a common non vascular plant
Sometimes water scarcity is caused by human action. Describe an example of where this has occurred.
Answer:
Explanation:
Water scarcity already affects every continent. Around 1.2 billion people, or almost one-fifth of the world's population, live in areas of physical scarcity, and 500 million people are approaching this situation. Another 1.6 billion people, or almost one quarter of the world's population, face economic water shortage (where countries lack the necessary infrastructure to take water from rivers and aquifers).
Water scarcity is among the main problems to be faced by many societies and the World in the XXIst century. Water use has been growing at more than twice the rate of population increase in the last century, and, although there is no global water scarcity as such, an increasing number of regions are chronically short of water.
Water scarcity is both a natural and a human-made phenomenon. There is enough freshwater on the planet for seven billion people but it is distributed unevenly and too much of it is wasted, polluted and unsustainably managed.
Human action often contributes to water scarcity through over-extraction of groundwater, often in agriculture. Rapid population growth, urbanization and industrialization also increase the demand for fresh water supply. An example is Cape Town, where rapid urbanization and climate changes led to a severe water crisis.
Explanation:Indeed, human action can significantly contribute to water scarcity. One common example can be seen in areas where there is excessive groundwater extraction. Particularly in agriculture, farmers may use sophisticated technology to pump water from aquifers more rapidly than it can be naturally replenished. This is known as over-extraction or 'mining' of water. Over time, this leads to a reduction in the water table, which in turn causes water scarcity. Moreover, population growth, urbanization and industrialization also increase the demand for freshwater and strain supplies. For instance, in cities like Cape Town, South Africa, rapid urbanization along with climate change had led to a severe water crisis. Thus, human activities are directly associated with water scarcity in many parts of the world.
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[tex](4 + 5) + (5 + 6)[/tex]
Explanation:
[tex](4 + 5) + (5 + 6) \\ = 4 + 5 + 5 + 6 \\ = 20[/tex]
in general which is the cause of a land breeze
Answer:
Land breeze are caused by temperature contrasts between land and water during 24 hours of the day.
Explanation:
Answer: The difference in specific heat capacity between land and water
Explanation: A.P.E.X
how many kilometers are equal to one light year
1.057e-13 is the correct answer you should be looking for
Answer:
1 light year is
9.461×10 power of 12 (standard form)
94610000000 Km
the formula is you would multiply the length value by 9.461e+12
help!!!!! What process works with continental divergent boundaries to form rift valleys ? Assignment due in 3 hours :(
Answer: Seafloor Spreading.
Explanation: A rift valley is formed on a divergent plate boundary, a crustal extension or spreading apart of the surface, which is subsequently further deepened by the forces of erosion.
Nord, Greenland
Paris, France
New York, NY
Quito, Ecuador
Cape Town, South Africa
Sydney, Australia
1. Which cities have summer in July?
2. Which cities only have 2 seasons?
3. Which cities are relatively warm all year round?
4. Which cities have 24 hrs of daylight during the summer?
5. Which cities have summer in January?
Answer:
1 - new york,ny, paris, france, quito, ecuador nord, greenland
2 - quito, ecuador,
3 - quito, ecuador, sydney australia
4 nord, greenland, cape town south africa,
5 - cape town, south africa, sydney australia,
Explanation:
In the Northern Hemisphere, July is a summer month for cities like Paris, New York, and Nord, Greenland. Quito, Ecuador, close to the equator, is generally warm year-round with two seasons, wet and dry. Summer in the Southern Hemisphere, including cities like Sydney, Australia and Cape Town, South Africa, is in January.
Explanation:In July, the cities that have summer are Paris, France; New York, NY; and Nord, Greenland because these cities are located in the Northern Hemisphere where summer occurs in July. Cities like Quito, Ecuador, near the equator, have relatively consistent weather throughout the year, essentially having two seasons - the wet and dry season. However, they can still be relatively warm all year round. Nord, Greenland experiences 24 hours of daylight during the summer due to its placement in the Arctic Circle. In contrast, cities like Sydney, Australia and Cape Town, South Africa have their summer in January because they are located in the Southern Hemisphere.
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why is ethiopia the least urbanized but rapidly urbanizing coutry?
Answer:
Maybe because their was a war right beside Ethiopia (south Sudan war) and refugees may have came here but got kicked out do to over population?
Explanation:
Ethiopia is the least urbanized country but its growing population led to the the rapid urbanization. Unemployment and underemployment rates have also gone down which resulted in the rapid urbanization of Ethiopia.
What is the problem of urbanization in Ethiopia?Ethiopia is one of the least urbanized countries in the world, and only 18% of Ethiopia population lives in urban areas. It is failing to meet the demands of growing numbers of urban residents.
The major cause for the urban problems in Ethiopia is the absence of policies on land use and economic development that led to urban problems. Like other developing countries, Ethiopia also faced some environmental and economic problem.
Ethiopia mainly follows the urban development strategy that is based on expropriation of peri-urban agricultural land from local peri-urban farmers.
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why is the location of water resources so important in southern and eastern africa
Plants absorb water from the soil through their roots. _______ of this water is used for photosynthesis; _______ of this water evaporates into the air through transpiration.
A.
None; all
B.
All; none
C.
Most; some
D.
Some; most
Answer: some,most
Explanation:
A small portion of the water absorbed by plants is used for photosynthesis, while the majority is lost through transpiration. The correct answer is D. Some; most.
Explanation:Plants absorb water from the soil through their roots, but not all of this water is used directly for photosynthesis. Some of the water absorbed is utilized for photosynthesis and other metabolic functions within the plant, while most of it evaporates into the air through a process called transpiration. This process is essential for pulling more water up from the roots through the plant to the leaves, as the water vapor lost needs to be replenished. Therefore, the correct answer to the student's question would be D. Some; most.
what role does gravity play in a hydroelectric dam's ability to produce energy?
if anyone's knows the story hydroelectric power by the United states geological survey please tell me what would be 2 good details thank you. please dont say anything mean in your answers.
Answer:
An opening in the dam uses gravity to drop water down a pipe called a penstock. The moving water causes the turbine to spin, which causes magnets inside a generator to rotate and create electricity
Explanation:
The role of gravity in a hydroelectric dam's ability to produce energy is that it allows the water to fall through the penstock inside such dam.
What is gravity?The naturally occurring gravitational force of the Earth to pull things and objects towards its surface, is known as the force of gravity.
Hence, the significance of gravity is aforementioned.
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First-person get the brainliest answer
Factors leading to unsettled relations among European nations included everything except:
A-nationalism
B-conflicts over colonies
C-United States interference
D-military build-ups
Answer:
C-United States interference
Explanation:
List and explain four human activities that contribute to soil erosion
Answer:
1. Deforestation 2. Overgrazing 3. Overcropping 4.Construction
Explanation:
Soil erosion is exacerbated by human activities like construction, logging, agricultural practices including overgrazing and leaving fields bare, and recreational interests such as hiking and off-road vehicle use. These activities remove vegetation cover, making soil more prone to erosion by water and wind.
Soil erosion is a significant environmental issue exacerbated by various human activities. Four main human actions that contribute to this include:
Construction: This activity often involves stripping the land of vegetation, which increases the vulnerability of soil to erosion by water and wind.Logging: Trees stabilize the soil with their root systems. When trees are removed during logging, the soil is more susceptible to being carried away by erosive agents.Agricultural Practices: Methods such as overgrazing by livestock and leaving fields bare without cover crops result in the loss of natural vegetation that protects soil from erosion.Recreation: Recreational activities like hiking and off-road vehicle use can damage soil and vegetation cover, leading to increased soil erosion.It is crucial to adopt practices that minimize soil erosion, such as terracing, strip cropping, and replanting vegetation, to maintain soil health and prevent further degradation.
What techniques are engineers using to reduce earthquake damage in Haiti ?
What other careers would help scientists predict or prepare for earthquakes ?
Final answer:
Techniques to reduce earthquake damage in Haiti include retrofitting, using resistant construction codes, lightweight materials, and flexible designs. Seismologists, geophysicists, and urban planners work with engineers to predict and prepare for earthquakes. Research like Dr. Hildebrandt's also plays a role in informing global disaster response strategies.
Explanation:
Engineers have employed various techniques to reduce earthquake damage in Haiti post the devastating 2010 earthquake. These measures include retrofitting existing structures, using more earthquake-resistant construction codes, incorporating lightweight materials, and implementing flexible building designs that can withstand seismic forces. Engineers are also working on public education to ensure that people understand the importance of building standards.
Predicting and Preparing for Earthquakes
Seismologists, geophysicists, and urban planners are among the professionals collaborating with engineers to predict and prepare for earthquakes. They employ technologies like seismographs to monitor earth movement and develop early warning systems that can alert populations before an earthquake hits, saving lives and reducing damage. Furthermore, government initiatives and individual preparedness plans can significantly reduce the impact of large earthquakes.
Global Collaboration and Research
Scientists worldwide, including researchers like Dr. Kristine Hildebrandt, conduct studies that may inform global disaster response strategies. Learning from past events allows for better preparation and understanding of the changes needed to improve earthquake resilience. Such collaborative research and exchange of knowledge are critical in designing infrastructure and response plans to minimize earthquake damage globally.
The Earth is tilted 23 1/2 degrees on its axis. The direction of the Earth's tilt does not change throughout its orbit.
At which position of Earth is it summer in the Northern Hemisphere?
Answer: B
Explanation: It is B because the earth is pointing towards the sun.
In the Northern Hemisphere, summertime is at point X of Earth. Therefore, choice (B) is right.
What do you know about the Northern Hemisphere?Just above the equator, trade winds blow from east to west. Due to the Coriolis effect, surface water is drawn along by the winds, forming currents that move westward.
The currents then turn to the right and move in a northerly direction. At roughly 30 degrees north latitude, a different set of winds, the westerlies, force the currents back to the east, creating a closed clockwise circle.
its surface is 60.7% water, as opposed to the Southern Hemisphere's 80.9% water, and it is home to 67.3% of the planet's land.
The Northern Hemisphere of the planet, which also includes nearly the whole continent of Asia, about two thirds of Africa, and a small portion of South America, is where the continents of Europe and North America are totally located.
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The figure below represents sedimentary layers in a single geographic location. Use
the diagram below to answer the question.
06:09
Layer C is a fine-grained sandstone with cross-bedding and land animal fossils. No
marine fossils are present. Under what conditions did it most likely form?
a) Fine sands are generally deposited by wind. The absence of marine fossils and the presence of land animal
fossils suggest that the area was dry, sandy land, such as a desert.
b) Graded bedding is found as a result of underwater landslides. The presence of marine fossils confirms that
the area was under the sea at one time.
U
C) The presence of marine fossils in a limestone confirms that this rock layer formed in an ocean.
u
d) None of the above
Answer:
dry, sandy, hot, maybe a desert
Final answer:
The correct option is a) Fine sands are generally deposited by wind. The absence of marine fossils and the presence of land animal fossils suggests that the area was dry, sandy land, such as a desert. This is the most likely condition under which layer C, a fine-grained sandstone with cross-bedding and land animal fossils but no marine fossils, formed.
Explanation:
Fine-grained sandstone, especially with features such as cross-bedding and land animal fossils, is indicative of terrestrial environments rather than marine. Cross-bedding occurs when wind or water flow shifts the orientation of sediments, which is common in desert dunes where winds are strong and unidirectional, creating angled layers. The presence of land animal fossils within the sediment further corroborates a terrestrial depositional environment, likely one where conditions for preservation were good, possibly due to rapid burial by the shifting sands typical in a desert scenario. The absence of marine fossils rules out a marine setting for this layer, despite the variety of depositional environments present in other sedimentary facies at the same geological time. Therefore, the conditions were those of a dry, sandy land area where wind played a significant role in sediment deposition.
When looking north, you see stars
O move in arcs from east to west.
appear to move in circles.
Omoving diagonally upward.
Omoving diagonally downward.
Answer:
When looking north, you see stars appear to move in circles.
Explanation:
The motion of stars in northern hemisphere shows the circular motion that follows the path around the Polaris. As it takes 24 hours to complete one full circle, so during a night less than 12 hour, we see only certain part of path i.e. stars moving in an arc.And if you're facing north, they are moving from west to east.So depending upon the time of observation the stars may take the path of an arc or the full circle.Which areas do local governments in Michigan control? Check all that apply.
Question: Which areas do local governments in Michigan control?
Answer:
1. public works
2. public safety
3. parks and recreation
This should be right if I'm wrong my bad but if I'm right then thats amazing, have a nice day, you truly deserve it, also Y.O.L.O
Answer:
1. public works
2. public safety
3. parks and recreation
This should be right if I'm wrong my bad but if I'm right then thats amazing, have a nice day, you truly deserve it, also Y.O.L.O
Explanation:
.
What commercial activity is found in areas of coastal upwelling?
Answer:
Fishing is the major commercial activity found in the coastal upwelling
Explanation:
Coastal upwelling is the best known type of upwelling, and the most closely related to human activities as it supports some of the most productive fisheries in the world. Wind-driven currents are diverted to the right of the winds in the Northern Hemisphere and to the left in the Southern Hemisphere due to the Coriolis effect.
Question 3 of 5
2 Points
Which force is a contact force?
O
A. Leaves falling
B. A bicycle braking
C. A magnet pulling
D. Lightning forming
Answer:
a bicycle braking
Explanation:
got it right on my test
Which state has the least land at or below 1,640 feet (305 m) above sea level?
Answer:
California
Explanation:
Death Valley has the lowest level below the sea which is 85m below the sea valley along with other known places in California
The Yangtze and Yellow Rivers are located in this country.
Japan
Myanmar
China
India
Answer:
The Yangtze and Yellow Rivers are located in the CHINA
Answer:
The answer is C - China
Explanation:
Three ways Israel is different from other countries in the Middle East.
The establishment of Israel had a significant impact on the Middle East. Once Israel declared sovereignty in 1948, armed conflict began almost immediately. Arab countries resented the creation of the state, supporting the rights of Palestinians in the region. Israel was forced to defend itself against its neighbors.
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Which of the following statements describes an interaction between the geosphere and biosphere
Soil acidity affects plant growth
Polar animals find their habitat in frozen ice
Wind energy is used to create electrical power
Level of precipitation has an impact on crop yield
Pls help
Answer:
wind energy hope this help!
Explanation:
Answer:
your answer is (C Wind energy is used to create electrical power) hope helps :D
Why is demand for water rising in india
Answer:
The demand for water is rising in india as there a lot of unclean and unsafe water to drink, there is lack of government attention and maybe because it is realy hot there that there has been less rainfall and most water has evaporated
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Write a hypothesis that describe how you think the rock model with stones will break down.
Answer:
Weathering
Explanation:
Weathering is the process by which rocks breakdown or dissolve into smaller stones on the surface of the Earth. The agents of weathering are Water, ice, acids, salts, plants, animals.
Once a rock has been broken down, a process called erosion transports the bits of rock away. No rock on Earth is hard enough to resist the forces of weathering and erosion.
Weathering is often divided into two :
1) Mechanical weathering, also called physical weathering and disaggregation, causes rocks to crumble.
2) Chemical weathering changes the molecular structure of rocks and soil.