Aquatic Science Final Exam Review

Which of the following best defines a watershed?

• A large body of water, such as an ocean

• The area of land that drains into a river or lake

• The movement of water through the atmosphere

• A natural depression in the Earth's surface filled with water

What is the term for the process by which water moves from the Earth's surface to the atmosphere and back again?

What is the primary source of energy for the water cycle?

• Wind

• Sun

• Rain

• Earth's core

Which of the following is NOT a type of wetland?

• Marsh

• Swamp

• Estuary

• Glacier

What is the main difference between a lake and a pond?

What percentage of the Earth's surface is covered by water?

• Approximately 50%

• Approximately 70%

• Approximately 30%

• Approximately 10%

Which of the following is NOT a factor that affects water quality?

• a. Temperature

• b. Dissolved oxygen levels

• c. Turbidity

• d. Elevation

What is eutrophication?

• a. The process of water freezing into ice

• b. The buildup of nutrients in a body of water, leading to excessive algae growth

• c. The movement of water from higher to lower elevations

• d. The erosion of soil along riverbanks

What is the term for the area where freshwater from a river meets saltwater from the ocean?

• a. Estuary

• b. Delta

• c. Marsh

• d. Wetland

Which of the following is NOT a factor that can contribute to water pollution?

• a. Industrial runoff

• b. Presence of fish

• c. Temperature

• d. Dissolved oxygen levels