[Answered] Clean air is composed mostly of a. oxygen b. nitrogen c. ozone d. argon e. ...

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Author Question: Clean air is composed mostly of a. oxygen b. nitrogen c. ozone d. argon e. ... (Read 79 times)

lidoalex

Hero Member
Posts: 538

on: Jul 26, 2018

Clean air is composed mostly of

a. oxygen
b. nitrogen
c. ozone
d. argon
e. CO2

Question 2

The most desirable solution to the hazardous waste problem involves

a. deep well injection
b. incineration
c. secure landfilling
d. source reduction and recycling
e. biological treatment

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Sweetkitty24130

Sr. Member
Posts: 291

Reply #1 on: Jul 26, 2018

Answer to Question 1

b

Answer to Question 2

d

lidoalex

Member
Posts: 538

Reply 2 on: Jul 26, 2018

Thanks for the timely response, appreciate it

parshano

Member
Posts: 333

Reply 3 on: Yesterday

Gracias!

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