ENVI Quarter 2 Test

Less than 3% of the water on Earth is

• Salt water

• Ice

• Freshwater

• Polluted

Most of the world's freshwater is trapped where?

• Ocean

• Lakes

• Rivers

• Glaciers

How much of the world's surface water is drinkable?

• 25%

• Less than 1%

• 5%

• 98%

What are TWO negative impacts humans have on our water resources?

• Overuse

• Overpopulation of fish

• Too salty

• Pollution

What type of water pollution carries sewage, agricultural, and industrial waste into our waterways?

• Runoff

• Condensation

• Groundwater

• Salt water

Which of the following is NOT a way to prevent water pollution?

• Use less detergents

• Avoid using single use plastics

• Use less fertilizers on yards and crops

• Allow farm waste to wash into lakes

A point source of pollution comes from...

• One source that we can identify, like a broken pipe

• Many different places, often carried by runoff into waterways which makes it hard to identify

A nonpoint source of pollution comes from...

• One source that we can identify, like a broken pipe

• Many different places, often carried by runoff into waterways which makes it hard to identify

Air pollution is known to cause...

• Breathing (lung) problems

• Increase in ideal weather

• Reduced food sources

• Decrease in global temperatures

What causes acid rain?

• Pesticide use

• Fertilizer use

• GHGs

• Sulfur dioxide and Nitrogen oxides