Atmospheric Chemistry 1-EB

The first atmosphere that took place on earth formed for about how many years?

Atmosphere helps in radio __?

Earth's atmosphere is composed of how many percent of nitrogen?

Earth's atmosphere is composed of how many percent of oxygen?

The imaginary line is called

What's the outer most layer of the Earth's atmosphere

The middle layer of the Earth's atmosphere

The Earth's atmosphere is maintained by the __ of the Earth's core

About 4 billions years ago, the huge oceans that resulted from condensed water vapor is called?

A non-ionizing radiation that is emitted by the sun.