My EM starter!

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Across
  1. 4. These are sources of energy that can be replenished thus can be used over and over again.
  2. 5. The type of rock formed when an existing rock is changed in form by heat and pressure.
  3. 6. One of the main types of pesticides.
  4. 7. A chemical used to control weeds
  5. 8. An ecological problem in which the concentration of toxins in living organisms become progressively higher at higher levels in a food chain.
  6. 9. The process by which nutrients are drained away from the soil by the action of rainwater.
Down
  1. 1. A process in which a living thing is used to remove toxic chemicals from a natural site.
  2. 2. The main mineral element which combines with glucose to form amino acids.
  3. 3. The process that leads to breakdown of rocks into smaller particles.
  4. 10. This type of soil is referred to as 'heavy' soil because it holds a high proportion of water.