Which of the following statements about the greenhouse effect is true?
A) The greenhouse effect is reduced by deforestation.
B) The greenhouse effect is exacerbated by the use of fossil fuels.
C) The greenhouse effect will decrease the average temperature of the planet.
D) The greenhouse effect decreases plant growth.
Answer: B
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Photosynthetic organisms serve as the base for most food chains in the biosphere.
Answer the following statement true (T) or false (F)
If the GC content of two organisms is 45% in both,
A. they are definitely related. B. they are definitely not related. C. they may or may not be related. D. the AT content is 65%. E. they are definitely related AND the AT content is 65%.
Which of the following traits is not characteristic of amniotes?
a. internal fertilization b. waterproof skin c. aquatic larval stage d. egg that can develop on land
Which of the following represents potential energy?
a. Chemical bonds b. Concentration of protons inside thylakoid space c. Sunlight d. Both a and b e. a, b and c are correct