How does loss of soil fertility exacerbate soil erosion? What will be an ideal response?
Loss of fertility reduces the amount of plant cover and thus increases temperature due to loss of the
cooling effects of plants and excess water. Without binding, irrigation and aeration of soil by plants,
soil becomes exposed and hardened and thus more susceptible to large losses from sheet runoff.
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What are the types of symbiotic relationships that organisms exhibit? Give examples of each. What will be an ideal response?
Land that cannot be cultivated will not be productive for other uses.
Answer the following statement true (T) or false (F)
The most dramatic temperature shifts in the past few decades have been ________
A) on land near the equator B) in Arctic areas such as Canada and Greenland C) in the inland areas of South America and Africa D) in the oceans nearest the equator
Which of the following rock photographs depicts a felsic igneous rock?
A. 
B. 
C. 
D. 