Oxygen, O2, is certainly good for you. Does it follow that if small amounts of oxygen are good for you then large amounts of oxygen would be especially good for you?
A) Yes. This is the reason patients are given pure (100%) oxygen during medical procedures.
B) Yes. Increased oxygenation of the bloodstream is good for you and can increase your life span.
C) No. Breathing 100% oxygen for extended periods of time can be damaging to the body.
D) No. Large amounts of oxygen will absorb hydrogen from the body and increase the amount of water in the body causing an imbalance in electrolytes.
C
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The Pollution Prevention Pays program was initiated by Minnesota Mining and Manufacturing (3M) in 1975 . Which of the following are actions that have been taken by 3M as part of this program?
a. There has been less use of hazardous raw materials. b. Nanotechnology has replaced heavy metals used in production. c. Overall waste production has not increased, but stayed level through 1998. d. More than one of these choices are correct. e. Nanotechnology has replaced heavy metals used in production and nanotechnology has replaced heavy metals used in production.
Lee-side lows are thermal lows that form due to surface heating over deserts
a. true b. false
The pressure gradient force drives air from areas of higher pressure to areas of lower pressure
Indicate whether the statement is true or false
The planet Mercury absorbs most of the sunlight that strikes its surface. Why is so little reflected back to outer space?
A) Mercury has a great deal of frozen methane on its surface. B) The planet is covered by a thick haze. C) Mercury has little or no atmosphere. D) The surface of Mercury has not been disturbed by meteorite impacts.