There are numerous gases in our atmosphere; however, the dominant gases are which of the following?

a) Nitrogen and oxygen
b) Carbon dioxide and argon
c) Nitrogen and carbon dioxide
d) Trace gases and oxygen
e) Oxygen and carbon dioxide


A

Environmental & Atmospheric Sciences

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Earth's gravitation acts on all the apples on an apple tree. Some apples are twice as far from the ground. Assuming all apples have the same mass, the twice-as-high apples have

A. 1/2 the weight. B. 1/4 the weight. C. practically the same weight. D. none of the above

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About how much electrical resistance does the human body have?

A) 200,000 ohms B) 300,000 ohms C) 400,000 ohms D) 500,000 ohms

Environmental & Atmospheric Sciences

The Roma (Gypsies) speak Greek, in the Indic branch of the Indo-European languages

Indicate whether the statement is true or false

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Paricutin is an example of a ________

A) shield volcano B) cinder cone C) composite volcano D) lava dome

Environmental & Atmospheric Sciences