Vocabulary exercise

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Across
  1. 1. means the balance between the amount of greenhouse gas (GHG) that's produced and the amount that's removed from the atmosphere.
  2. 4. If a place is ________, it is impossible for people to live there, for example because it is dangerous or unhealthy.
  3. 5. means that something is very harmful or dangerous
  4. 6. this occurs when the maximum and the minimum temperatures are unusually hot over a three-day period at a location
Down
  1. 2. means that the complete disappearance of a species from Earth
  2. 3. means that something is equal in value, amount, function, meaning