Pollution

What process causes water to recycle itself naturally?

• rock cycle

• water cycle

• carbon cycle

• nitrogen cycle

What could happen if people threw their trash into a stream?

• The animals would live longer
• Animals would drink all of the water
• The environment would not be affected
• Animals would not have clean water to drink

What is NOT a way to cause pollution

• picking up litter
• spilling oil in the river
• throwing trash on the ground
• driving a gas gussler

What is trash on the ground called?

• oil slick
• smog
• litter

Which human activity would be most likely to have a negative impact on the environment?

• Planting trees to control soil erosion
• Limiting the use of chemicals that kill weeds.
• Stopping the draining of swamps.
• Burning coal and oil to generate electric power.

Which one is an example of recycling? 
 
  

• Reusing a paper bag for lunch. 
•  Using less water to take a bath. 
• Making new glass bottles from old ones.
• Using plastic cups instead of paper cups. 

What is a renewable resource?
 
 
  

•  one that can be replaced quickly 
• one that is man-made
• one that comes from the sun 
• one that will never run out 

What is one way a person can help to conserve or save energy?


     

• Drive a big car with no passengers.
• Cut off lights when they exit a room.
• Brush teeth with hot water.
• Ride a bicycle to school.

A scientist studies a sample of swamp water. He finds that there are many dead plants and fish in the water. ________ in the water could be the cause of this.

• litter
• oxygen
• mud
• pebbles

Which of these is recycling?

• Making a small plastic windmill out of plastic bottles
• Fixing up a windmill
• Destroying a windmill