What is deforestation, and what factors are primarily responsible for the deforestation of the tropics?
What will be an ideal response?
"Deforestation is the removal of forest and replacement by another land use. Deforestation is caused by a number of factors, all of which come down to the fact that the countries involved are in need of greater economic development and have rapid population growth. The FRA 2000 study concluded that the current major cause of deforestation is conversion to pastures and agriculture."
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What can individuals do to shift to more sustainable energy use?
What will be an ideal response?
The typical pattern of urban growth in which suburbs or shopping areas are developed on the edge of the city results in which of the following problems?
A. Valuing and protecting the diversity of nature. B. High cost of providing water, sewer, and electricity. C. Flooding. D. The central city becomes over-crowded.
Which process occurs in the loop of Henle and is essential to urine concentration?
A. passive transport of H+ into the filtrate B. active transport of water out of the filtrate C. active transport of NaCl out of the filtrate D. passive transport of urea out of the filtrate
A rapid change in density with depth is called a ________.
A. pycnocline B. halocline C. midwater current D. thermocline E. photic level