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Author Question: The first molecules of RNA were probably made A) on the surfaces of clays or other minerals B) ... (Read 37 times)

Mollykgkg

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on: Jul 27, 2018
The first molecules of RNA were probably made
 
  A) on the surfaces of clays or other minerals
  B) deep within the earth
  C) in the atmosphere
  D) in space and then transported to the Earth in meteorites

Question 2

If we say that a material is opaque to ultraviolet light, we mean that it
 
  A) absorbs ultraviolet light.
  B) emits ultraviolet light.
  C) transmits ultraviolet light.
  D) reflects ultraviolet light.


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swimkari

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Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

A


Mollykgkg

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Reply 2 on: Jul 27, 2018
Excellent

frankwu0507

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Reply 3 on: Yesterday
Wow, this really help

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