Environmental Science
Which one of the following ecosystem type has the highest annual net primary productivity?

Temperate evergreen forest
Tropical rain forest
Tropical deciduous forest
Temperate deciduous forest

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Environmental Science
What is the cause of the Exxon Valdez?

Oil Tanker which sank in 1989 along the coast of Alaska and marine life seriously affected.
none of these.
a plane which crashed and caused death of human life
a ship which wrecked on the coast of India

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