2nd Semester Earth Science Final Review

Front

What is the primary source of Earth's water supply?

Back

Oceans, which contain more than 97% of Earth's total water supply.

Front

What percentage of Earth's surface is covered in water?

Back

71% of Earth's surface is covered in water.

Front

What does the fossil record provide evidence for?

Back

The fossil record provides evidence for extinction and evolution, but not for Earth's current climate and environment.

Front

Define weathering in the context of Earth science.

Back

Weathering is the process of breaking down rocks into soil by wind, oxygen, water, and living organisms.

Front

Define erosion in the context of Earth science.

Back

Erosion is the process of wearing away soil and rock by water, wind, or ice.

Front

What role do plants play in the water cycle?

Back

Plants contribute to evaporation by using water for photosynthesis and releasing it into the atmosphere.

Front

What is the difference between weathering and erosion?

Back

Weathering breaks down rocks into soil, while erosion involves the movement of soil and rock from one location to another.

Front

What is the process of condensation in the water cycle?

Back

Condensation is the process where water vapor cools and changes back into liquid water, forming clouds.

Front

What is precipitation in the water cycle?

Back

Precipitation is any form of water, such as rain, snow, sleet, or hail, that falls from the atmosphere to the Earth's surface.

Front

What is the significance of the water cycle?

Back

The water cycle is crucial for maintaining life on Earth, regulating climate, and supporting ecosystems.