Hawaii is the result of a(n) ____
a. island arc
b. convergent plate margin
c. divergent plate margin
d. hot spot
d
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Which of the following reactions is involved in the activation of phosphatidylinositol secondary messengers?
A) dephosphorylation B) phosphorylation C) reduction D) oxidation
How can agriculture be responsible for increasing the amount of methane in the atmosphere?
A) Crops like corn and soybeans add methane to the atmosphere B) Methane is emitted by bacteria in the gut of agricultural animals, such as cattle and sheep C) Overtilling the land will cause the soil to break down and release greenhouse gases D) Fumes from liquid fertilizer are opening holes in the ozone
____________________ is an important constituent of soil and provides nutrients to plants and increases the ability of the soil to retain ____________________
Fill in the blank(s) with correct word
Lead poisoning in children is an example that exemplifies the problem of ________ for minority children in the United States.
A. Sanitary conditions B. Inadequate healthcare C. Environmental racism D. Inadequate nutrition E. Poverty