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Re: Calculating hydroelectric plants' environmental impact is not simple. [#permalink]
For 1, why B is wrong though?
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Re: Calculating hydroelectric plants' environmental impact is not simple. [#permalink]
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jjgre2021 wrote:
For 1, why B is wrong though?


Estimating amounts of these gases is difficult, and amounts vary depending upon the specific location, terrain, and power intensity of the dam with its associated lake.


The impact on the vegetation is an effect or by-product.

B is wrong because the vegetation is not the main reason upon which evaluate the impact of a dam


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Re: Calculating hydroelectric plants' environmental impact is not simple. [#permalink]
Hi thank you for your response.

Impact on vegetation is a by-product. Wouldn't it exactly translate into what option B says? i.e. effect on vegetation is not primary reason upon which evaluate the impact of a dam
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Re: Calculating hydroelectric plants' environmental impact is not simple. [#permalink]
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The question says

B) It is not primarily determined by the effects of dam building on vegetation.

At the very most the cost of a dam depends on vegetation destruction.

Honestly, the option is clearly wrong but the passage is NOT so clear in what we could or not infer.

Even A is not so cristal clear
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Re: Calculating hydroelectric plants' environmental impact is not simple. [#permalink]
For 2 why C is correct?

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Re: Calculating hydroelectric plants' environmental impact is not simple. [#permalink]
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Calculating hydroelectric plants' environmental impact is not simple. Dam building requires steel and cement, the manufacture of which entails greenhouse gas emissions. Estimates for these emissions are relatively straightforward to make and show that the consequences are small compared to the benefits of generating greenhouse gas-free hydroelectric power. But more difficult-to-estimate greenhouse gas contributions occur during the plants operation.

Clearly, as you can see, it starts another major problem

C is the answer
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Re: Calculating hydroelectric plants' environmental impact is not simple. [#permalink]
Thanks a lot! For 2, I choose D for the first time. I understand the function of bold sentence now. But I still don’t know the meaning of C. “Anticipate and respond...” Can you explain C to me? Thank you so much for your response! I

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Re: Calculating hydroelectric plants' environmental impact is not simple. [#permalink]
Hello from the GRE Prep Club VerbalBot!

Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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