Answer:
correct
Explanation:
a satellite is about 22369.363 miles from the equator.
During the early earth, when photosynthesis has not yet evolved, there were only negligible amounts of free oxygen in the atmosphere. It was said that the Earth's atmosphere had no free oxygen then. This is about 3.5 billion years ago.
Answer:
a. the amount of biologically productive land/sea area needed to support the lifestyle of humans
Answer:
Humans get all the things they need for life from natural resources. People cant stay away from the natural things like solar power, air, water and soil.
Explanation:
Newton realized that the reason the planets orbit the Sun is related to why objects fall to Earth when we drop them. The Sun's gravity pulls on the planets, just as Earth's gravity pulls down anything that is not held up by some other force and keeps you and me on the ground.