The Earth is expected to warm globally through radiant forcing after which of the following events occurs:
a. an increase in the amount of energy transmitted by the sun
b. an increase in volcanic activity across the globe
c. a decrease in natural cloud cover and contrails
d. an increase in the concentration of greenhouse gasses in the atmosphere
The Earth is expected to warm globally through radiant forcing after which of the following events occurs:
a. an increase in the amount of energy transmitted by the sun
b. an increase in volcanic activity across the globe
c. a decrease in natural cloud cover and contrails
d. an increase in the concentration of greenhouse gasses in the atmosphere
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30. How would amino acids from the bloodstream move across a cell membrane?
| a. | diffusion | |
| b. | osmosis | |
| c. | facilitated diffusion | |
| d. | active transport | |
| e. | endocytosis |
31. Which of the following is not a greenhouse gas?
| a. | water vapor | |
| b. | carbon dioxide | |
| c. | gaseous nitrogen | |
| d. | methane | |
| e. | nitrous oxide |
32. The greenhouse effect is most similar to
| a. | heating up the air inside a car by parking it in the sun | |
| b. | warming the air for a hot-air balloon with a propone burner | |
| c. | burning kerosene in a heater to warm up the air inside a cold house | |
| d. | growing plants in your office to reduce indoor air pollution | |
| e. | cooking food with a charcoal grill |
33. Temperature is a measure of
| a. | the potential energy in a substance | |
| b. | how fast the molecules in a substance are moving | |
| c. | the energy lost from a substance to its surroundings | |
| d. | how much heat is being absorbed by a substance |
34. Fossil fuels include all the following EXCEPT
| a. | oil | |
| b. | coal | |
| c. | hydrogen gas | |
| d. | natural gas | |
| e. | gasoline |
35. On Earth,________is/are the largest reservoir of carbon dioxide and heat.
36. Chemical work within cells is powered by
| a. | NAD+ | |
| b. | NADPH | |
| c. | ADP | |
| d. | ATP |
38. Which of the following processes creates the most ATP per glucose molecule metabolized?
| a. | glycolysis | |
| b. | fermentation | |
| c. | photorespiration | |
| d. | aerobic cellular respiration | |
| e. | the light reactions of photosynthesis |
39. In cellular respiration,_______is produced during_______.
| a. | oxygen; the citric acid cycle | |
| b. | carbon dioxide; the citric acid cycle | |
| c. | oxygen; the light reactions | |
| d. | carbon dioxide; the light reactions |
40. Metabolic pathways that require oxygen are referred to as
| a. | aerobic | |
| b. | anaerobic | |
| c. | photosynthetic | |
| d. | fermentative |
