One type of water pollution is ________ pollution.

• Thermal

• Acoustic

• Magnetic

• Solar

One type of water pollution is ________ pollution.

• Biological

• Thermal

• Chemical

• Radioactive

One type of water pollution is ________ pollution.

• Inorganic

• Thermal

• Acoustic

• Magnetic

One type of water pollution is ________ pollution.

• Organic

• Thermal

• Radioactive

• Plastic

What is thermal pollution?

• Thermal pollution can occur when water is used as a coolant near a power or industrial plant and then is returned to the aquatic environment at a higher temperature than it was originally.

• Thermal pollution is the contamination of water by plastic waste.

• Thermal pollution is the increase in soil fertility due to fertilizers.

• Thermal pollution is the excessive growth of algae in water bodies.

Thermal pollution can lead to a decrease in the _______ level in the water.

• dissolved oxygen

• carbon dioxide

• salinity

• pH

What happens to the biological demand of aquatic organisms for oxygen due to thermal pollution?

• It increases.

• It decreases.

• It remains unchanged.

• It fluctuates randomly.

Thermal pollution occurs when water is returned to the aquatic environment at a

• lower temperature

• higher temperature

• same temperature

What is the main subject of the image?

• A school building

• A factory emitting smoke

• A shopping mall

• A sports stadium

According to the passage, what are the major sources of thermal pollution?

• Electric power plants and industrial factories

• Rivers and lakes

• Automobiles and airplanes

• Forests and mountains