Environmental Science
The conversion of a pond to a climax forest community is an example of

xerarch succession
mesarch succession
hydrarch succession
all of these

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Environmental Science
What is the cause of the Exxon Valdez?

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

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