Dynamic Planet B/C

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jimmy-bond
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Re: Dynamic Planet B/C

Post by jimmy-bond »

I have a question from an invitational that I'm trying to figure out the answer to.

The carbonate compensation depth is
a) the depth at which calcium carbonate dissolves
b) the depth at which calcium carbonate is replaced by siliceous ooze
c) the depth at which the delivery of calcium carbonate equals the rate at which it dissolves
d) both b and c

I put d and the other team from my school put c. We were both wrong. Wikipedia says that at the CCD, all calcium carbonate dissolves, implying that some dissolves above it, so I ruled out a. Most of the other websites I read say c is correct, and b is one I reasoned was correct. What's the correct answer, and why?
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Re: Dynamic Planet B/C

Post by IHateClouds »

jimmy-bond said:

I have a question from an invitational that I'm trying to figure out the answer to.

The carbonate compensation depth is
a) the depth at which calcium carbonate dissolves
b) the depth at which calcium carbonate is replaced by siliceous ooze
c) the depth at which the delivery of calcium carbonate equals the rate at which it dissolves
d) both b and c

I put d and the other team from my school put c. We were both wrong. Wikipedia says that at the CCD, all calcium carbonate dissolves, implying that some dissolves above it, so I ruled out a. Most of the other websites I read say c is correct, and b is one I reasoned was correct. What's the correct answer, and why?
I think it is C but it was an Event Supervisor's mistake. I've had cases where in the rush to grade everything, supervisors will mark it wrong. (Even if the answer key has the same answer.)
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Re: Dynamic Planet B/C

Post by jimmy-bond »

IHateClouds wrote: Mon Dec 02, 2019 2:15 pm I think it is C but it was an Event Supervisor's mistake. I've had cases where in the rush to grade everything, supervisors will mark it wrong. (Even if the answer key has the same answer.)
I just got the answer key. Answer is A. Someone needs a talking-to.
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Re: Dynamic Planet B/C

Post by FLLkitty »

The rules state "shortwave and longwave radiation" as a possible topic. What are you studying for that?
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Re: Dynamic Planet B/C

Post by jimmy-bond »

FLLkitty wrote: Wed Dec 04, 2019 1:52 am The rules state "shortwave and longwave radiation" as a possible topic. What are you studying for that?
I put the electromagnetic spectrum in my notes, and you should know that the sun emits shortwave radiation and it is reflected as longwave radiation.
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Re: Dynamic Planet B/C

Post by adarsh »

is anyone putting up any Div B invites up? I want to get a sense of how good me and my partner are
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Re: Dynamic Planet B/C

Post by jimmy-bond »

adarsh wrote: Wed Dec 04, 2019 5:17 pm is anyone putting up any Div B invites up? I want to get a sense of how good me and my partner are
There are some tests from 2016 but other than those, you just gotta go to invitationals.
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Re: Dynamic Planet B/C Horizontal & Vertical Structure

Post by aeurius »

Hello!~ Im on the portion that concerns horizontal/vertical ocean structure and i cant find much info on anything bhdhbdhd. :D I would appreciate any help! <3
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Re: Dynamic Planet B/C

Post by Giantpants »

aeurius wrote: Wed Dec 11, 2019 6:14 am Hello!~ Im on the portion that concerns horizontal/vertical ocean structure and i cant find much info on anything bhdhbdhd. :D I would appreciate any help! <3
So by vertical structure, what I think it means may be like the layers of the ocean based on depth. In terms of horizontal structure of the earth, the three layers of the oceans water based on latitude and density is a good place to start. These are pretty intro level, but I think they are good starting points for the topic!
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Re: Dynamic Planet B/C

Post by aeurius »

Giantpants wrote: Wed Dec 11, 2019 6:34 am
aeurius wrote: Wed Dec 11, 2019 6:14 am Hello!~ Im on the portion that concerns horizontal/vertical ocean structure and i cant find much info on anything bhdhbdhd. :D I would appreciate any help! <3
So by vertical structure, what I think it means may be like the layers of the ocean based on depth. In terms of horizontal structure of the earth, the three layers of the oceans water based on latitude and density is a good place to start. These are pretty intro level, but I think they are good starting points for the topic!
Thank you!!💕

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