NASA | The Changing Chesapeake

The video discusses the importance of Chesapeake Bay, the largest estuary in the U.S., and its environmental challenges due to nutrient pollution and sediment. It highlights the role of Landsat imagery in monitoring changes in the landscape, such as impervious surfaces and tree canopy, and its critical use in understanding the impact of human activities on water quality, wildlife habitat, and air quality. The video also identifies pollution sources, including fertilizers, vehicle exhaust, and power plant emissions.

What makes the Chesapeake Bay a critical estuary in the United States?

• It has the largest water volume in the world.

• It has the largest land area to water volume ratio in the US.

• It is the deepest estuary in the US.

• It is the oldest estuary in the world.

What are the primary causes of poor water clarity in the Chesapeake Bay?

• Excessive fishing activities

• Excess nutrients and sediment

• High levels of industrial waste

• Natural algae blooms

Which of the following is NOT a source of nutrients affecting the Chesapeake Bay?

• Manure and chemical fertilizers

• Exhaust from cars

• Air pollution from power plants

• Natural forest fires

How does Landsat imagery help in environmental monitoring?

• By tracking animal movements

• By providing real-time video footage

• By measuring air temperature

• By collecting data on different wavelengths

What is the significance of Landsat imagery in understanding human impact on the environment?

• It tracks the migration of birds.

• It helps in predicting weather patterns.

• It provides a baseline for observing changes in land use.

• It measures the depth of water bodies.