[Answered] What percentage of hydrocarbons found in the atmosphere result from human activity? A) 15 B) 35 ...

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erika

Hero Member
Posts: 522

on: Aug 27, 2018

What percentage of hydrocarbons found in the atmosphere result from human activity?

A) 15
B) 35
C) 55
D) 75

Question 2

Most hydrocarbons in the atmosphere in rural areas arise from

A) automobile exhaust.
B) evaporation of gasoline.
C) industrial emissions.
D) natural sources.

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Marked as best answer by a Subject Expert

jonathanballen97

Sr. Member
Posts: 347

Reply #1 on: Aug 27, 2018

Answer to Question 1

A

Answer to Question 2

D

erika

Member
Posts: 522

Reply 2 on: Aug 27, 2018

Gracias!

atrochim

Member
Posts: 331

Reply 3 on: Yesterday

YES! Correct, THANKS for helping me on my review

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