Unit 3- Interacting Earth Systems

Front

Rivers, lakes, streams, ponds, marshes, oceans, and estuaries are all what type of ecosystems?

Back

Water ecosystems.

Front

What percentage of Earth's water is freshwater?

Back

Approximately 3%.

Front

This system contains all living things including humans.

Back

The biosphere.

Front

Which TWO (2) of the following items can you recycle? can of food, batteries, styrofoam, cardboard box

Back

Can of food and cardboard box.

Front

What can make Earth's water undrinkable?

Back

Pollution, such as chemicals, waste, or harmful microorganisms.

Front

Why do tuna live in an ocean ecosystem and not a grassland ecosystem?

Back

Tuna require saltwater to survive, which is found in ocean ecosystems, not grasslands.

Front

Which of the following items would you find in the geosphere? polar bear, dirt, grass, rain, puddle, oxygen, rocks, nitrogen

Back

Dirt and rocks.

Front

This system contains all the water on Earth such as oceans, rivers, and lakes.

Back

The hydrosphere.

Front

Are renewable resources or nonrenewable resources mined from Earth?

Back

Nonrenewable resources.

Front

How many oceans are on Earth?

Back

Five oceans.