The isolation of groups of people has little to do with the formation of different languages
Indicate whether the statement is true or false.
Answer: FALSE
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Why does the ocean not boil or freeze solid in different regions of the world?
A) The latent heat of fusion and vaporization balance the heat energy inputs and outputs. B) Heat is able to be transferred to water vapor. C) Heat is transported by oceanic and atmospheric circulation. D) The thermal inertia of water is low in certain regions.
What is a result of phosphate rich runoff from land?
A. improved agricultural production B. increased growth of algae in streams, lakes, and other water bodies C. healthier forests and increased forest growth D. decreased need for fertilization of agricultural crops E. erosion and release of marine sediments
Which method do scientists argue is most effective at reducing the amount of air and water pollution?
A. A shift to energy sources such as solar and windpower. B. Attaching pollution control devices to smokestacks. C. Injecting steam into the ground to remove groundwater contaminants. D. Collecting runoff from construction sites before it enters a river.
Matching
10. On the generalized structure of the Earth figure, choose the letter of the layer that contains nonrenewable fossil fuels and minerals. 11. On the generalized structure of the Earth figure, choose the letter of the layer that is comprised of water, ice, and water vapor. 12. On the generalized structure of the Earth figure, choose the letter of the layer that is made up of the troposphere and the stratosphere. 13. On the generalized structure of the Earth figure, choose the letter of the layer that is composed of all of the Earth's ecosystems. 14. On the generalized structure of the Earth figure, choose the letter of the layer that consists of the Earth's crust and upper mantle.