Land Preparation

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