Which statement supports the giant impact theory for the formation of the Moon? A. Earth and the Moon share many compositional c
haracteristics. B. Earth and the Moon have the same sized core. C. The Moon exerts a greater gravitational force than Earth. D. Moon rocks are younger than rocks found on Earth.
Answer: A. Earth and the Moon share many compositional characteristics
Explanation:
According to the giant impact theory, the Moon formed when an object of the size of Mars and geologically similar to Earth (which was called Theia by scientifics) crashed into the primitive Earth. With this collision, vaporized pieces of the crust of the young Earth were thrown into space. After this, the expelled particles were united by the action of gravity, creating the Moon.
This theory could explain in a certain way the reason why the Moon is predominantly composed of elements similar to those found on Earth, but lighter, making it less dense than Earth, since the material that formed it came from the crust, leaving the rocky core of the planet intact. This was verified by the samples of rocks brought from the Apollo missions, which indicate that it is composed mostly of the same components of the Earth.
The gravitational force between Earth and the moon is strong. But the force is not strong enough to pull the moon towards us. That's why the moon doesn't fall on Earth.
Water supply living space and environmental condition are greatly affected by a natural disaster which in result affect the carrying capacity of an area. It can affect the ability of an environment to sustain animal or plant populations.
