Answer:
the first one is A
i dont know how to solve for the secound one
Explanation:
The first one is A because the exterior engle equals the two angles added together and I put x=49 into the equation and it worked.
Have a fantastic daaaay!
Canberra became Australia's federal capital in 1928!! :)
C - it seems the most logical
Answer:
The crust broke up because of the convection currents, formed tectonic plates, and is slowly pushed on the surface until it collides with another plate and subducts.
Explanation:
This image gives us the basics of how the plate tectonics theory works. The material in the upper mantle is cooler and denser than the material in the lower mantle, so it drops down and it pushes the hotter and less dense material up. This creates a circular motion in the mantle, and this motion creates enormous pressure on the crust above it and breaks it up.
As the crust is broken up, magma is rising constantly for millions of years, so the new magma pushes the old solidified one further away. This also pushes two pieces of crust away from each other. As the crusts move away, they eventually collide with another plate, and either gradually merge with it, or a subduction zone is created. In the latter, the crust moves below another crust and into the mantle, where it gets melted and recycled.
<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.
