Living Things Change Their Environment

When living things battle each other for resources, it is called

• producing
• recycling
• cooperation
• competition

People harm the environment 

• by recycling
• by draining wetlands
• by reducing waste
• by reusing products

Which of the following causes the MOST change to  the environment?

• animals
• plants
• people 
• storms

What does the following list describe?
food, air, water, space, sunlight

• resources
• organisms
• competition
• pollution

Where is most of Earth's water located?

• rivers
• lakes
• oceans
• glaciers

What do rivers, ponds, streams, glaciers, and icebergs all contain?

• freshwater
• salt water
• drinking water
• frozen water

Which is a nonrenewable resource?

• air
• water
• plants
• coal

Turning off lights when leaving the room is a good way to conserve

• trees
• renewable resources
• fossil fuels
• sunlight

What animal changes the environment by adding nutrients to the soil?

• ladybug
• worm
• butterfly
• fish

Cars, factories, and trash can harm the environment by creating

• resources
• competition
• pollution
• nutrients