The sky is pale blue in higher altitudes while it is deeper blue in lower altitudes. This is because there is more air molecule closer to earth surface (as a result of higher air pressure) than higher altitudes. The air molecules are responsible for scattering of sunlight hence giving the sky its blue hue. The more the air molecules the more the scattering.
If you could dig a tunnel right through the Earth you could theoretically free-fall to the centre of our planet in just eighteen minutes. You can’t, of course: such a tunnel would have to tolerate temperatures as high as the surface of the Sun and pressures three and a half million times greater than those at the Earth’s surface.
I think the answer is d not a 100 % sure
Answer:
Hey!
Your answer is C. the movement of the Earth's plates
Explanation:
i.e Tectonic Activity
The crust is made out of these 'plates' which are continually moving around!
HOPE THIS HELPS!
Answer:
I believe it would be D
Explanation:
Because it needs light energy to live