Question 1
The planets would all take a straight path out of the solar system without

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The planets would all take a straight path out of the solar system without

magnetism

electricity

gravity

friction

gravity

Explanation:

Gravity is the force by which something that has mass attracts other things to its center. The force of gravity keeps all of

In the solar system, the planets orbit around the sun because of its gravitational force. The more mass an object has, so much more its gravity. That's why the Sun being the biggest object, keeps planets orbiting around it.

Homo sapiens´s main traits that allow them survive was: Lack of prognathism and powerful supraorbital arches, they have little marked superciliary arches, round skull, a 1350cm³ cranial capacity and face flattened.

Their biggest skills was: Rock art, hunting and carrion, collectors, conscience of rituals making, bury dead tribe members, sophisticated stone tools and handling of fire.