Unit 8: Watersheds TEST CORRECTIONS

Front

What is a watershed?

Back

A watershed is an area of land where all the water that falls on it drains into a common body of water, such as a river, lake, or ocean.

Front

What is runoff?

Back

Runoff is water that flows over the ground surface and into bodies of water, often carrying pollutants with it.

Front

What are algae blooms?

Back

Algae blooms are rapid increases in the population of algae in water bodies, often caused by excess nutrients like fertilizers.

Front

How does fertilizer runoff affect aquatic ecosystems?

Back

Fertilizer runoff can lead to nutrient pollution, causing algae blooms that deplete oxygen in the water and harm aquatic life.

Front

What is the relationship between depth and temperature in the ocean?

Back

As the depth of the ocean increases, the temperature generally decreases.

Front

What is the significance of collecting water samples at different points?

Back

Collecting water samples at different points helps identify pollution sources and levels in a watershed.

Front

What are the main sources of ocean pollution?

Back

Main sources of ocean pollution include land runoff, oil spills, air pollutants, and litter.

Front

What is the impact of land runoff on oceans?

Back

Land runoff can carry fertilizers, pesticides, and other pollutants into oceans, affecting water quality and marine life.

Front

What is the role of air pollutants in ocean health?

Back

Air pollutants can settle into oceans, contributing to water quality issues and harming marine ecosystems.

Front

What is the effect of oil spills on marine environments?

Back

Oil spills can cause severe damage to marine life, habitats, and ecosystems, leading to long-term environmental impacts.