Across
- 2. Chemicals, garbage or smoke are put into the environment causing harm to humans, animals and plants.
- 4. Crops cannot grow on land when it is what?
- 6. Clearing and removal of a forest.
- 7. What method of land clearing involves spraying something on plants to kill them?
- 8. What method of land clearing involves the burning down of forests
Down
- 1. What kind of chemicals are used to kill weeds and other plants?
- 3. What method of land clearing is quick, expensive and involves driving?
- 5. What can cause harm to the body if taken into the it or onto it?