Unit 2-Objective 1

Question 1

What is the composition of the atmosphere of the Earth today?

Answer 1

Earth’s atmosphere is composed of about 78 percent nitrogen, 21 percent oxygen, 0.9 percent argon, and 0.1 percent other gases.

Question 2

What are 3 things that caused the atmosphere to change and how?

Answer 2

Human doings like Burning fossil fuels – Fossil fuels such as oil, gas, and coal contain carbon dioxide.
Volcanic activity spreading airs into the atmosphere
Changes in earths rotation/orbit

Question 3

Example of an interaction with hydrosphere and biosphere within the earths system:

Answer 3

rain (hydrosphere) falls from clouds in the atmosphere and provides plant (biosphere) growth and nutrients.

Question 4

Example of an interaction with atmosphere and biosphere within the earths system:

Answer 4

Plants (biosphere) takes in CO2 and lets out O2 affecting the air (atmosphere)

Question 5

Example of an interaction with geosphere and biosphere within the earths system:

Answer 5

Plants(Biosphere) grow in the ground (geosphere)