ASSIGNMENT ON CHEMISTRY OF THE EARTH 1

What gases make up the other 1% of the present atmosphere?

Where may the gases that formed the Earth's early atmosphere come from?

How may the oceans have been formed?

b) Write a word equation for the early formation of oxygen in the Atmosphere

A lot of the carbon from the carbon dioxide in the Earth’s early

atmosphere has ended up in the fossil fuels coal, natural gas and crude oil.

Outline how coal was formed.

Write a balanced equation for the process that produces oxygen in the Atmosphere?

Outline how natural gas and crude oil were formed