Which major atmospheric component is chiefly a product of life processes?

A) Carbon dioxide
B) Water
C) Oxygen
D) Hydrogen sulfide
E) Nitrogen


C

Physics & Space Science

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In a gaseous mixture of hydrogen and oxygen, the molecules having the greater average kinetic energy are

A) hydrogen. B) oxygen. C) both the same D) not enough information

Physics & Space Science

Imagine for a minute that the Moon is held in its orbit about the Earth by electrical forces rather than by gravitation. What electrical charges ?Q on the Earth and +Q on the Moon are necessary to hold the Moon in a circular orbit with a period of 27.3 days? The Earth-Moon distance is 384,000 km and the mass of the Moon is 7.35 × 1022 kg.

What will be an ideal response?

Physics & Space Science

The lesser amount of a substance in a solution is generally called the

a. solute. b. salt. c. solvent. d. alloy.

Physics & Space Science

The Doppler effect is sensitive only to motion along the line of sight

a. True b. False Indicate whether the statement is true or false

Physics & Space Science