Lithosphere

6.Which of the following processes best describes mechanical and chemical changes to items of the lithosphere?

1. The water cycle 

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2.The nitrogen cycle

3.Weathering

4.Plate tectonics 

7.What sorts of changes would not likely occur as a result of mechanical weathering?

1.Changes in shape

2.Changes in color  

3.Formation of cracks

4.Changes in size

8.What sorts of changes would not likely occur as a result of chemical weathering?

1.Changes in shape 

2.Changes in color

3.Formation of cracks

4.Changes in location 

9.Which is a common cause of the formation of rust-colored rings on rocks?

1.Petrification

2.Metamorphosis

3.Mechanical weathering

4.Chemical weathering 

10.What role can lightning play in the nitrogen cycle?

1.It can convert atmospheric nitrogen to ammonia

2.It can break down organic matter to create ammonia.

3.It can convert ammonia into nitrates.

4.Lightning does not impact the nitrogen cycle.

11.Which best represents a plausible thickness of the lithosphere?

1.15 miles

2.100 miles

3.350 miles

4.600 miles

12.Which most accurately estimates the percentage of Earth covered by water?

1.16%

2.32%

3.71% 

4.97%

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