10 Questions
What are the major divisions of the Geosphere?
Crust, Mantle, Core
Which layer of the Geosphere is mainly composed of basaltic rocks?
Oceanic Crust
What is the main composition of the Mantle?
Mostly solid material, likely consisting of silicate rock with higher percentages of magnesium and iron
What is the composition of the Outer Core?
Mainly iron and nickel (metals)
Where is most of the Earth's liquid water found?
Hydrosphere, in the oceans
What is the approximate percentage of the Earth's water that is found in the oceans?
97.6%
Which atmospheric layer is the densest and where most of Earth's weather occurs?
Troposphere
What is the Greek word meaning 'cold' that refers to the frozen water part of the Earth system?
Cryosphere
What is the approximate percentage of the Earth's atmosphere that is composed of nitrogen?
78%
Which atmospheric layer is best known as the home to Earth's ozone layer?
Stratosphere
Learn about the percentage composition of different water bodies in the hydrosphere like oceans, glaciers, and groundwater, as well as the significance of the cryosphere which consists of ice and snow on land. Explore how the cryosphere and hydrosphere contribute to Earth's system.
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