Water pollution

_____________________ is the contamination of air, land, and water.

• Conservation

• Ecology

• Pollution

Pollution occurs when people release, dump, leak, spill, or ______________ the environment around us.

• litter

• preserve

• save

Most incidents of pollution are deliberately caused by______.

• humans

• machines

• animals

The illegal dumping or littering of waste onto the land is called __________ pollution.

• air

• land

• water

The leaking or spilling of chemicals or raw sewage into a body of water is ________ pollution.

• air

• water

• land

Sludge run off from factories and industries is an example of _______ pollution.

• air

• land

• water

Is this good for us?

• yes

• no

Is this good for us?

• yes

• no

To reduce pollution in the environment, people should ______________ materials.

• recycle
• pollute
• throw away
• clean

Which of the following does NOT cause water pollution?

• oil spills
• garbage
• fertilizers from farms
• smoke