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# Heightened land erosion, caused by human activity, has many

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Manager
Joined: 08 Nov 2005
Posts: 180

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

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23 Sep 2009, 19:25
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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.

can anyone explain?

Kudos [?]: 22 [0], given: 10

Manager
Joined: 01 Jul 2009
Posts: 217

Kudos [?]: 32 [0], given: 39

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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.

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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Kudos [?]: 32 [0], given: 39

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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