Wetlands are critical for wildlife survival because they
A. Allow animals to cool off
B. Are highly productive and are sources of food
C. Provide vast amounts of habitat
D. Contain few, but rare, species
E. All of these are correct
Answer: B
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A biome found in the tropics that is known to have very low nutrient content in its soil is the ____________________
Fill in the blanks with correct word
How do worms help plants grow?
A) They are a source of minerals. B) They carry out chemical reactions that convert carbon dioxide to nitrogen. C) They decompose organic material into compounds plants can use. D) They add excrement, a source of nutrients, plus they produce air space by crawling through the soil.
Discuss the possible development of birds from dinosaurs. What characteristics do they have in
common? What will be an ideal response?
The attraction of the outsourced "call center" industry to locate in India can best be explained by
A) low wages and the wide use of English. B) low wages and geographic situational factors. C) the wide use of English and the large number of working students. D) Indian students' ability to work at night and geographic situational factors. E) low wages and desperate conditions.