Question

using vocabulary
to complete the following sentences, choose the correct term from each pair of terms listed below:

1. _? is the presence of harmful substances in the environment. (pollution or biodiversity)
2. _? is a type of pollution produced by nuclear power plants. (cfc or radioactive waste)
3. a _? resource can be used only once. (nuclear or nonrenewable)
4. _? is the variety of forms among living things. (biodegradable or biodiversity)
5. _? is the breaking down of trash and using it to make a new product. (recycling or reuse)

Explanation:

1. Pollution refers to harmful substances in the environment. Biodiversity is about variety of life forms.
2. Radioactive waste is a pollution - by - product of nuclear power plants. CFCs are related to ozone layer depletion.
3. Nonrenewable resources can be used only once. Nuclear is a type of energy source.
4. Biodiversity is the variety of life forms. Biodegradable refers to the ability to break down.
5. Recycling involves breaking down trash to make new products. Reuse is using an item again without breaking it down.

Answer:

1. Pollution
2. Radioactive waste
3. nonrenewable
4. Biodiversity
5. Recycling