Earth's Systems

1. All the water in the oceans, the freshwater in streams and lakes, the snow and rain are part of the _________________________.

• biosphere
• geosphere
• hydrosphere
• atmosphere

2. Mountains, boulders, caves, and all the solid rock of Earth make up the ____________________________

• biosphere
• geosphere
• hydrosphere
• atmosphere

3. All living organisms are part of the _____________________.

• biosphere
• geosphere
• hydrosphere
• atmosphere

4. ____________________________ is the layer of gases that surround the Earth.

• biosphere
• geosphere
• hydrosphere
• atmosphere

5. Rust is an example of...

• chemical weathering
• erosion
• biogeology
• mechanical weathering

6. The most important characteristic of a sediment is...

• it sinks to the bottom of the water
• it absorbs water
• its color
• it floats in the water

7. Tectonic plates move and float on the mantle

• True
• False

8. The thinnest layer of the Earth is...

• Crust
• Mantle
• Outer Core
• Inner Core

9. Earth's mantle and crust are part of the...

• biosphere
• hydrosphere
• geosphere
• atmosphere

10. Which of the following is NOT a tool of mechanical weathering.

• Wind
• Water
• Ice
• Plants