Pollution (ICSE Biology)

The ozone layer protects us from

• UV rays
• CFCs
• Increased atmospheric heat
• Decreased atmospheric heat

Which of the following are non-degradable substances? (tick all that apply)

• Styrofoam

• Vegetable

• Plastic

• Electronic waste

Climate change caused by extra carbon dioxide in the air that causes heat to get trapped in the atmosphere is called

• global warming

• photosynthesis

• smog

Gases released from power plants mix with water vapor in the sky to make ________________.

• smog

• acid rain

• global warming

• particulate matter

A mixture of smoke, fog and chemicals in the air is known as ________.

• oxygen

• radiation

• smog

what is true about eutrophication in lakes and other bodies of water?

• it is always natural

• it is always artificial

• it can cause too much algae to grow

• none of these are true

Which are the main pollutants relesed from the vehicular exhaust? (select all that apply)

CNG stands for

• Clean Natural Gas

• Compressed Natural Gas

• Complete Natural Gas

• Combined Natural Gas

Liquid waste produced by factories is called?

• Effluent

• Particulate pollutant

• Solid waste

• Radioactive waste

A chief radioactive pollutant that can cause thyroid cancer.

• Cobalt 60

• Iodine 131

• X-rays

• UV Rays