Answer: people from serberia probably walked on feet over to america in the late ice age. it was covered with a thick sheet of ice and was hard to inhabit.
Explanation:
65.78% of the water is is frozen at the poles.
Earth was able to retain an atmosphere because of its gravity. It is <span>the same force that keeps us anchored to Earth. Molecules in our atmosphere are constantly moving, spurred on by energizing sunlight. If Earth were much less massive, gravity's grip would be weaker.</span>
In the absence of any forces, no force is required to keep an object moving. ... Skipping Newton's second law (arguably the most important law for our purposes ) for ... mean that the movements are equal (or that the objects will stop moving). .... However, if we had forgotten to reset acceleration to zero, the gust of wind would ...
