Q3 - Scientist: Venus contains a hot

[redcobra21]

Any thoughts? I'm having a hard time seeing how (E) is correct

[hyewonkim89]

Hi redcobra21,

I also got this question wrong when I first tried it.

I think I now see why (A) resolves the discrepancy.

Since rock on the surface of Venus can hold much higher temperatures, it won't have to explode or crack like volcanoes or tectonic plates as it is on Earth.

For (E), the atmosphere of Venus being hotter that that of Earth still doesn't really explain how Venus expels heat without any volcanoes and tectonic plates separation.

I hope this helps.

[tommywallach]

Hey Guys,

Um...something wacky is going on here. Both of you are citing the wrong "right" answer to this question. It is neither (A) nor (E), but (B).

Discrepancy: Venus has to get rid of heat, but it doesn't have volcanoes or fissures.

(A) Having solid rocks doesn't get rid of heat.

(B) CORRECT. The heat can just radiate outwards now (no need for holes in the surface).

(C) Fluctuations won't help us get rid of the heat.

(D) Surface movement won't help us get rid of heat.

(E) This doesn't provide a method for getting rid of the heat.

Hope that helps!

-t

[hyewonkim89]

Wow.. That makes so much more sense now. I must have looked at the answer for question #2 and tried to MAKE (A) as the right answer.

Thanks Tommy!

[halflate37s]

I chose A because...

A: If the surface is rock and that rock is HOT, then technically that means heat is radiating outward from it.

B: The surface could be "thin" (whatever that means) but be a of a material with a ridiculously high melting point - higher than what we'd call rock.

BUT
Since B explicitly talks about the radiating heat, implying that whatever the thin surface is made of, its allowing heat to radiate out, I understand why it beats A.

[VickX462]

The stimulus states that "Venus must expel excess heat the core generates." With this in mind, any answer choice that does not explicitly discuss the methods of expelling excess heat can be eliminated.

B is the correct answer.