Question

3) Match the words with the descriptions.




something that can cause harm to people, plants, or animals

natural gas



liquid fossil fuel used to make gasoline




gas fossil fuel that makes fewer pollutants than coal




animal waste that can be used for heating and cooking


solid fossil fuel made from plants that lived long ago

4) Choose the best answer.

Where does most fuel in the United States come from?

the sun

fossil fuels

wood
5) Choose the best answer.

Burning coal can put _____ in the air.

energy

water

pollutants
6) Choose the best answer.

Which kind of fuel can corn be made into?

oil

natural gas

ethanol

Answer 1

### 3) Match the words with the descriptions.

1. **something that can cause harm to people, plants, or animals**: **pollutants**
2. **natural gas**: **gas fossil fuel that makes fewer pollutants than coal**
3. **liquid fossil fuel used to make gasoline**: **oil**
4. **animal waste that can be used for heating and cooking**: **biomass**
5. **solid fossil fuel made from plants that lived long ago**: **coal**

### 4) Choose the best answer.

**Where does most fuel in the United States come from?**
- **fossil fuels**

### 5) Choose the best answer.

**Burning coal can put _____ in the air.**
- **pollutants**

### 6) Choose the best answer.

**Which kind of fuel can corn be made into?**
- **ethanol**