It traps the heat in instead of letting it out into space. For this reason CO2 is a greenhouse gas.
Subsistence farming, form of farming in which nearly all of the crops or livestock raised are used to maintain the farmer and the farmer's family, leaving little, if any, surplus for sale or trade. Preindustrial agricultural peoples throughout the world have traditionally practiced subsistence farming<span>.</span>
Seafloor mapping during WWI and the Cold War had revealed the details of the physical structure of the ocean ridge system, and discovery of magnetic stripes on the ocean floor was the crucial turning point in development of plate tectonic theory. when deep-sea line soundings (bathymetric surveys) were routinely made in the Atlantic and Caribbean.
Answer:
Layers that are less dense, such as the crust, float on layers that are denser, such as the mantle. Both oceanic crust and continental crust are less dense than the mantle, but oceanic crust is denser than continental crust. This is partly why the continents are at a higher elevation than the ocean floor.
Explanation:
Answer:
The theory of the formation of fossil fuels is that fossil fuels are the remnants of organisms that lived a long time ago and were buried, heated, and formed into hydrocarbons.
Explanation:
A is not correct because the nitrogen is not a gas that is dominant in fossil fuels.
B is not correct because the oxygen can not turn to carbon in any manner.
C is correct because the consensus about the formation of fossil fuels is that after the organisms were dying out, they were getting buried (usually in the soft layers of the ocean floor), over time with the higher temperatures and pressure from below managed to change their structure and create hydrocarbons.
D is not correct because there hasn't been any evidence so far that there are fossil fuels on comets and asteroids.
