At sea level, how far can a molecule in the atmosphere travel before it collides with another molecule?
A) 5 × 10-4 cm B) 2 cm C) .004 cm D) 7 × 10-6 cm
D
Environmental & Atmospheric Sciences
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The Great Plains of the United States and Canada are dominated by:
A) Coniferous forest B) Desert shrub C) Middle-latitude prairie and steppe grassland D) Tropical forest
Environmental & Atmospheric Sciences
Cirrus clouds are usually composed of: a. ice crystals
b. both ice crystals and water droplets. c. smog particles. d. water droplets.
Environmental & Atmospheric Sciences
If experimental conditions are carefully controlled, aldehydes can be obtained by the oxidation of which of the following?
A) 1° alcohols B) 2° alcohols C) 3° alcohols D) all of these
Environmental & Atmospheric Sciences
Which of the following is involved in the formation of the pre-initiation complex?
A) ATP B) CTP C) GTP D) UTP
Environmental & Atmospheric Sciences