Many people consider the ocean to be the ultimate trash dump. This is because
1.out of sight, out of mind.
2.we’re running out of room for more landfills.
3.the ocean is so deep, there’s no way trash or wastes can surface or be seen again.
4.there is so much water in the ocean that the waste will be diluted to non-harmful levels.
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In the demographic transition model, birth and death rates are high during
a. the preindustrial stage b. the industrial stage c. the postindustrial stage d. the transitional stage e. the preindustrial stage and the transitional stage
In a strong El Nino year, weather in the western Pacific tends to be
A. highly variable, extreme wet and dry cycles. B. wetter than normal. C. dryer than normal. D. normal, since El Nino's effects stay in the western hemisphere.
Explain how fossils, and especially microfossils, can be used to help determine ancient
depositional environments. What will be an ideal response?
Of the following macromolecules, which is synthesized according to directions carried by DNA?
a. Lipids b. Proteins c. Carbohydrates d. Nucleic acids