About 3.6 billion years ago, one billion years after the formation of Earth, the first simple cells (prokaryotes) appeared on Earth. Hope this helps!
The Earth's Crust is like the skin of an apple. It is very thin in comparison to the other three layers. The crust is only about 3-5 miles (8 kilometers) thick under the oceans( oceanic crust ) and about 25 miles (32 kilometers) thick under the continents ( continental crust)
* got from Google*
Answer:
wind is produced by the uneven heating of the earth's surface by the sun
Explanation:
therefore, the sun is technically making windmills spin to make energy
During mitosis, the chromatin in the nucleus of a cell condenses and becomes visible under a microscope. The membrane around the nucleus breaks down.
