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Author Question: Why is normal precipitation always slightly acidic? A) Precipitation dissolved carbon dioxide to ... (Read 129 times)

AEWBW

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on: Jul 14, 2018
Why is normal precipitation always slightly acidic?
 
  A) Precipitation dissolved carbon dioxide to form carbomic acid.
  B) Nitrogen fixing bacteria form nitric acids which evaporate into the atmosphere.
  C) Sulfur dioxide from volcanic explosions combines with water to form sulfuric acid.
  D) Chlorine, in the presence of sunlight and hydrogen, is converted to hydrochloric acid.

Question 2

Ocean sediment cores provide a climate record for the past ________ years.
 
  A) 800,000
  B) 2 million
  C) 10 million
  D) 70 million


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Dunkey

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Reply #1 on: Jul 14, 2018
Answer to Question 1

A

Answer to Question 2

D


AEWBW

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Reply 2 on: Jul 14, 2018
Gracias!

pratush dev

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Reply 3 on: Yesterday
:D TYSM

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