What pulls the rocks together to make a planet?

What were the conditions of our Earth 4.54 billion (4540 million) years ago? (Temperature? what gases are available? Solid surfaces?)

What happens when the planet crashes into Earth?

How long does a day last when Earth is first formed? Why?

What is inside the meteors that were striking Earth 3.9 billion (3900 million) years ago?

Why are the ocean’ tides so high and strong 3.9 bya (billion years ago)?

Where do the small islands come from 3.8 bya?

What are the “chemical soup” chemicals responsible for?

What is are the underwater bacterial colonies called?

What organisms are the first to photosynthesize?

What is the single most important element on Earth for life?

What was the name of the supercontinent 1.5 billion years ago?

Gravity

Temperature 1200C, very hot, no solid surfaces all boiling lava, CO2, nitrogen, water vapor

both planets turn to liquid, debree forms the moon

Hours because the sun sets 3 hours after it rises

crystals, that contain water in them

The moon is so close to Earth that its gravity is causing large waves

Molten lava bursts up through the ocean, and cool creating the continents and small islands

creates life, single celled organisms/bacteria, amino acids

Stromatolite

stromatolite

Oxygen

Rodina

1. Gravity

2. Our planet was forming the ozone layer and it was very hot.

3. All of the dinosaurs go extinct.

4. 4 hours due to the Moon's influence on Earth.

5. Flaming rock

6. The moon controls the tides and it was the start of the Earth and the moon was close.

7. From the meteor that broke it apart.

8. IDK

9. Stromatolites

10. Bacteria

11. Oxygen

12. Pangea

answer is a

explanation:

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.