Water Pollution

Which of these can cause water pollution?

• recycling

• planting trees

• sewage and chemicals

• conserving water

Earth's ​ (a)   is made up of ​ (b)   % water but only ​ (c)   % is ​ (d)   water.

• surface
• 70
• 2.5
• fresh
• core
• 50
• 10
• salt
• mantle

TRUE or FALSE: Leaving the water running while brushing your teeth will help reduce water pollution.

• True

• False

Which of these things can you safely flush down the toilet or pour down drains?

• Medicine

• Chemicals

• Paint

• Toilet paper