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Sajjad1994
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Hi sajjad,

Choice E also involves forces of supply and demand. The consumers are buying and the products are supplied based on how much they are consuming.

In contrast to D, this option talks about a scenario in which something is reduced like the way earths crust material is lost.

I am not sure if D is a better option than E.

Please provide your inputs.

Thanks in advance!
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AkashM
Hi sajjad,

Choice E also involves forces of supply and demand. The consumers are buying and the products are supplied based on how much they are consuming.

In contrast to D, this option talks about a scenario in which something is reduced like the way earths crust material is lost.

I am not sure if D is a better option than E.

Please provide your inputs.

Thanks in advance!

This RC is very hard and it has two reasons in my point of view.

1. The complicated scientific topic
2. One needs to keep in mind the previous ideas and then to connect them with the upcoming ideas to reach at the ultimate conclusion.

Coming to the question

E. Inventory in a retail store remains constant because items are automatically replaced when they are purchased by consumers.

D. The price of a product remains the same because supply and demand remain balanced throughout the year

In the analogy questions we need to keep in mind the methodology/criteria or functionality of each analogy given. The methodology or criteria with which the inventory in a retail store and price of a product remain constant are very different. To keep the inventory in a store constant is completely under the control of a firm while to keep the price constant the firm can only effect the supply but not the demand so it is not totally in control of the firm. So the functionality here is different.

Hope it helps
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Hi Sajjad1994

The OA for Q2 is E. However, E just states that the radius of the earth did not increase and not that it did not decrease. To remain constant, shouldn’t the radius neither increase nor decrease.

Also, I marked A as the answer. Could you help me understand what did I miss?

Thank you! :-)
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purvikhandelwal1
Hi Sajjad1994

The OA for Q2 is E. However, E just states that the radius of the earth did not increase and not that it did not decrease. To remain constant, shouldn’t the radius neither increase nor decrease.

Also, I marked A as the answer. Could you help me understand what did I miss?

Thank you! :-)

Official Explanation

2. Which of the following, if true, would support the theory that the globe’s surface area (the amount of lithosphere) has remained relatively constant over the Earth’s history?

Difficulty Level: 650-700

Explanation

Two things are important to note from the passage about the lithosphere: 1) Its movement (not creation or elimination) causes the plates on the earth's surface to move; and 2) it is responsible for oceans and landmasses alike (the third paragraph discussed this). So choices A and B are irrelevant.

Choices C and D are similar to each other, and both would actually weaken that theory because they would show that the balance of lithosphere formed and lost would have been disturbed.

Choice E is correct, as the earth's radius remaining constant would explain its surface area - which is covered by lithosphere - remaining constant, too.

Answer: E.
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Sajjad1994
Can you provide inputs for Q4, between option B and D
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Sajjad1994
Hi sajjad

can you please explaion question no 3.
In the passage it is mentioned that the sea floor does not expand and contract due to the movement in tectonic plates, then why would author agree with option B where it is mentioned that seafloor spreading is an essential part of plate tectonic theory?
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Sajjad1994
Can you provide inputs for Q4, between option B and D

Official Explanation

4. The primary purpose of this passage is to:

Difficulty Level: 650

Explanation

The author is describing the theory of plate tectonics and does so without inserting any opinion. He is not "arguing" anything and at no point does he mention any controversy, so choice A is incorrect, and although he mentions that the theory will evolve he doesn't make any specific predictions, so E is incorrect.

For C, there is no discussion or focus on shortcomings of the theory so this is incorrect.

For E, any "evidence" he gives is part of the narrative for how the theory came to be - he doesn't provide the support himself, but rather discusses how the theory has evolved into what it is. The goal of the passage is to make the reader better understand the theory of plate tectonics, so D is correct.

Answer: D
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Sajjad1994
Hi sajjad

can you please explaion question no 3.
In the passage it is mentioned that the sea floor does not expand and contract due to the movement in tectonic plates, then why would author agree with option B where it is mentioned that seafloor spreading is an essential part of plate tectonic theory?

Official Explanation

3. The author would most probably agree with which of the following statements:

Difficulty Level: 600

Explanation

In the first paragraph, the author states that "The geoscientific community accepted the theory of plate tectonics ONLY after the concepts of seafloor spreading were developed in the late 1950s and early 1960s." From this you know that seafloor spreading is an essential component to the theory of plate tectonics so B is correct.

Choice A is incorrect as there is no evidence the theory is controversial and the author certainly doesn't think it lacks evidence.

Choices C and D are too strong - he does mention that the theory will evolve, but we can't infer that he thinks "most" disagreements will be resolved or that any new explanations are necessary (it's more likely, given that he spent so much time discussing plate tectonics based on seafloor spreading, that he's more interested in confirmation and clarification of the current theory).

And E is also false - he rarely mentions gravity but has a lot to say about convection.

Answer: B
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Hi, Sajjad1994 can you please elaborate a bit more on D vs E? It is still not very clear. Even E has two competing foreces (customers buying) and (company filling the inventor) = net result inventory remains same/constant.

Sajjad1994
pradeepgontla
Hi sajjad,

Kindly provide the explaination.

Best Regards,
Pradeep.

Official Explanation

1. Which of the following situations is most analogous to the “conveyor belt principle” described in the 3rd paragraph?

Difficulty Level: 750

Explanation

The "conveyor belt principle" suggests that the amount of the world's lithosphere remains constant because there is a balance of two forces - when some is lost to subduction, another amount is created by diversion.

Choice D (unlike A and C) suggests a balance. Choice B suggests a balance, but one that doesn't involve any forces (it's just a static amount). And choice E doesn't involve two competing forces. Choice D, then, is correct.

Answer: D
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Can You please explain why Option B is incorrect in Q4?
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B is incorrect because the passage isn't really written in a way that suggests it is trying to support the theory of plate tectonics. Rather it is more telling you how plate tectonics work. The 2nd and 3rd paragraphs are almost exclusively focused on explaining how plate tectonics works, hence it is D. If the author was trying to provide support for why plate tectonics, it would be written more in a tone of saying why certain data suggests this theory has strong backing.
hoshang_chauhan
Can You please explain why Option B is incorrect in Q4?
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