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16. The poisonous gases were not __ in the air

A. able to float
B. visible
C. able to evaporate
D. invisible
E. able to condense​

User Matt Kim
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2 Answers

4 votes

Answer:

able to evaporate

Step-by-step explanation:

gas is evaporated liquid...... the process cannot take place again

User Dymmeh
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2 votes
  • The poisonous gases were not visible in the air.

User Bill Patterson
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