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Heightened land erosion, caused by human activity, has many

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Heightened land erosion, caused by human activity, has many [#permalink]

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New post 23 Sep 2009, 19:25
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D
E

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Heightened land erosion, caused by human activity, has many negative effects including the following: algae blooms, coral reef destruction, imbalance of the fish population, and the introduction of harmful chemicals to the ocean's environment.
A) including the following: algae blooms, coral reef destruction, imbalance of the fish population, and the introduction of harmful chemicals to the ocean's environment.
B) including: algae blooms, coral reef destruction, imbalance of the fish population, and harmful chemicals entering the ocean's environment.
C) including: algae blooms, coral reef destruction, imbalance of the fish population, and the introduction of harmful chemicals to the ocean's environment.
D) including the following: algae blooms, coral reef destruction, imbalance of the fish population, and harmful chemicals entering the ocean’s environment.
E) including the following: algae blooms, coral reef destruction, certain fish populations rising, certain fish populations falling, and the introduction of harmful chemicals to the ocean’s environment.

Correct Answer: A
can anyone explain?

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Re: Heightened land erosion [#permalink]

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New post 25 Sep 2009, 08:37
orsang8 wrote:
Heightened land erosion, caused by human activity, has many negative effects including the following: algae blooms, coral reef destruction, imbalance of the fish population, and the introduction of harmful chemicals to the ocean's environment.
A) including the following: algae blooms, coral reef destruction, imbalance of the fish population, and the introduction of harmful chemicals to the ocean's environment.
B) including: algae blooms, coral reef destruction, imbalance of the fish population, and harmful chemicals entering the ocean's environment.
C) including: algae blooms, coral reef destruction, imbalance of the fish population, and the introduction of harmful chemicals to the ocean's environment.
D) including the following: algae blooms, coral reef destruction, imbalance of the fish population, and harmful chemicals entering the ocean’s environment.
E) including the following: algae blooms, coral reef destruction, certain fish populations rising, certain fish populations falling, and the introduction of harmful chemicals to the ocean’s environment.

Correct Answer: A
can anyone explain?


Well, the answer should be among A, D, E. But in D & E not all members of the sentence are parallel, then it's A.
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Re: Heightened land erosion   [#permalink] 25 Sep 2009, 08:37
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Heightened land erosion, caused by human activity, has many

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