Lesson on Earth's Atmosphere

Oxygen is about ____ of the atmosphere

Which gas makes up 78% of our atmosphere?

Which layer of the atmosphere does all weather occur?

Which layer of the atmosphere helps us by burning up incoming meteors?

Which layer of the atmosphere contains the ozone layer?

A compound made of three oxygen atoms is called

Based on the chart, which layers of the atmosphere have a temperature that decreases as the altitude increases? Check all that apply.

Which layer of the atmosphere do we live in?

How did scientists determine where the layers of the atmosphere are divided?

One of the accepted scientific theories describing the origin of life on Earth is known as chemical evolution. According to this theory, which of the following events would need to occur first for life to evolve?

Which types of organisms developed first due to the early environmental conditions on Earth?

The diagram below shows a proposed theory of the origin of eukaryotic cells, called endosymbiosis.

Which of the following explains why cells that contained mitochondria-like organelles had an evolutionary advantage?

A field of science that deals with the study of the coevolution of life and our planet.

The study of genetic code that is shared by all life on Earth.