M5 Review

What are the 5 layers of the atmosphere?

Refers to the presence of undesirable substance in air which interferes with human health and welfare, or produces other harmful effects to the environment.

State 4 main pollutants discussed.

In this diagram, what happens to nitrogen after ammonification?

• Nitrogen-fixing bacteria living in the legume root nodules

• ammonium

• nitrates

• nitrites

• denitrifying bacteria

In this diagram what is needed to convert atmospheric nitrogen into a usable form?

• Nitrogen-fixing bacteria living in the legume root nodules

• ammonium

• nitrates

• nitrites

• denitrifying bacteria

Which of the following does not produce carbon dioxide when acid is added?

• calcium carbonate

• zinc carbonate

• sodium carbonate

• ammonia

Which gas supports combustion?

What kind of bacteria will die if exposed to oxygen?