It would be (C. Daughters are more economically valuable to a family than sons.)
GPS is a new tool in geography that can help us find locations. GPS stands for Global Positioning System.
<u>Explanation:</u>
GPS stands for The Global Positioning System. It is a network that has about 30 satellites that orbits the Earth. These are at the height of about 20,000 km above the earth. This was initiated by the government of United states for the purpose of navigation of military. Now a days GPS can be used by anyone using a GPS device and can be able to receive the signals that are broadcasted.
There will be at least four GPS satellites that will be visible over any time. The information will be transmitted at a regular interval of time depending upon the position and the current timings. These signals will be transmitted at the speed of light and will be identified by the GPS receiver.
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Native Americans came to America from Asia: as far as we know none of the original inhabitants of Americas crossed the Atlantic.
Specifically, they came from North Asia and they entered North America in Alaska.
They crossed the Bering Strait which is between Alaska and Asia.
<span>Injecting into geological formation, adding iron to the ocean to increase phytoplankton, and shooting into space
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All of the above proposed methods are being proposed to help decrease global warming <u>but adding aerosols into the atmosphere does not involve the mitigation of the increase in CO2 in the atmosphere. </u>
1. Adding aerosol to the atmosphere - aerosols added to the atmosphere have the potential to block the sun's rays and reduce global warming. They reflect the sun's rays back to the atmosphere while at the same time providing "seeds" around which water droplets can come together to form clouds. Cloud formation can also help increase the earth's reflectivity against the sun's rays.
2. Injecting into geological formation - carbon dioxide from stationary sources (e.g. powerplants and factories) can be captured and eliminated from the atmosphere, compressed into a fluid state, and injected deep underground into permeable and porous geological formations and overlain with a layer of impermeable rock to seal the CO2 underground.
3. Adding iron to oceans to increase phytoplankton - phytoplanktons take up carbon dioxide from the atmosphere for photosynthesis. Thus, adding iron to the oceans, which acts as a fertilizer to the phytoplanktons, can encourage the growth of the phytoplankton population. The more phytoplanktons, the more CO2 that can be removed from the atmosphere.
4. Shoot it into space - some scientists propose that a conveyor can be built in the Arctic to take advantage of the Earth's magnetic field and allow for the venting or expelling of CO2 into outer space.
