In the real world, acid rain comes from ____.

• vinegar mixing with rain.

• gases made by burning fossil fuels mixing with rain.

• gases from decaying matter mixing with rain.

• acids caused by lightning mixing with rain.

Which unit is a measure of the acidity of soil and water?

• centimeter

• gram

• newton

• pH

A large amount of rain can cause all but one of these. Which one?

• The water can become too acidic for some aquatic animals to live in.

• The eggs of some aquatic animals don't hatch in water that is too acidic.

• Too much acid in the soil damages some plants' roots.

• Acid rain causes car batteries to not work properly.

Which statement is NOT true about aquatic ecosystems that have been overfertilized?

• Algae blooms may occur, turning the water bright green.

• Overcrowded plants die, and their decay uses too much oxygen.

• Fish suffocate because bacteria have used all the oxygen.

• The increase in the number of plants that are food for fish allows an increase in the number of fish.

What supports much of the life in the Chesapeake Bay?

• Crabs

• Oysters

• Snails

• Water Grasses

You have learned about the Chesapeake Bay watershed. Check all the statements below that are true.

• Guntersville Lake is a watershed.

• The Chesapeake Bay is where the water in the Chesapeake Bay watershed comes from.

• Water from the Chesapeake Bay watershed flows upward to New York.

• The Chesapeake Bay watershed drains water from several states.

Choose the biggest effect on the Bay from : Dairy farmers

• using energy that comes from burning fossil fuels

• cutting down trees and paving land

• adding toxic materials like gasoline, antifreeze, motor oil, and paint to the water

• taking too many shellfish and fish out of the bay

• allowing manure to wash into streams

Choose the biggest effect on the Bay from : Land developers

• using energy that comes from burning fossil fuels

• cutting down trees and paving land

• adding toxic materials like gasoline, antifreeze, motor oil, and paint to the water

• taking too many shellfish and fish out of the bay

• allowing manure to wash into streams

Choose the biggest effect on the Bay from : Ordinary citizens

• using energy that comes from burning fossil fuels

• Cutting down trees and paving land

• adding toxic materials like gasoline, antifreeze, motor oil, and paint to the water

• taking too many shellfish and fish out of the bay

• allowing manure to wash into streams

Choose the biggest effect on the Bay from : Watermen

• using energy that comes from burning fossil fuels

• cutting down trees and paving land

• adding toxic materials like gasoline, antifreeze, motor oil, and paint to the water

• taking too many shellfish and fish out of the bay

• allowing manure to wash into streams