Please please help me Which gas is a waster gas?

Question 11 options:

carbon dioxide

oxygen

water vapour

What gas do we need to live?

Question 1 options:

oxygen

carbon dioxide

water vapour
Select all of the correct answers:

What three things happen in the nose to the air?

Question 5 options:

Air gets cleaned.

Air gets drier.

Air gets warmed.

Air gets moister.

The graph shows the federal budget from 1980 to 2010. in which period did the federal budget show the greatest deficit? 1980 to 1990 1980 to 2000 1990 to 2000 2000 to 2010

What is the rule relating the ratio of marginal utility to prices of two goods at the optimal choice? explain why, if this rule does not hold, the choice cannot be utility-maximizing.

Hegyes was driving her car when it was negligently struck by a unjian enterprises truck. she was injured, and an implant was placed in her body to counteract the injuries. she sued unjian, and the case was settled. two years later hegyes became pregnant. the growing fetus pressed against the implant, making it necessary for her doctor to deliver the child 51 days prematurely by cesarean section. because of its premature birth, the child had a breathing handicap. suit was brought against unjian enterprises for the harm sustained by the child. was the defendant liable?