Throughout history, some of the best farmland has been the flat areas along rivers. Why?
What will be an ideal response?
These floodplain areas receive fresh additions of nutrient-rich sediments whenever the river floods.
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Birth rates generally reach their highest point in which stage of a country's demographic transition?
a. preindustrial b. transitional c. industrial d. postindustrial e. stage 1
Slash-and-burn agriculture:a
is practiced by international corporations. b. is practiced by large scale cattle ranchers. c. includes fuel wood consumption. d. is practiced by many people in highly developed countries. e. is practiced by subsistence farmers.
Which best summarizes the overall reactions of photosynthesis?
a. 6 CO2 + 12 H2O ? C6H12O6 + 12 O2. b. C6H12O6 + 6 O2 + 6 H2O ? 6 CO2 + 12 H2O c. 6 CO2 + 12 H2O ? C6H12O6 + 6 O2 + 6 H2O d. 12 CO2 + 6 H2O ? C6H12O6 + 12 O2 + 6 H2O e. 6 H2CO3 + 6 H2O ? C6H12O6 + C6H12O6 + 6 H2O + 6 O2
The type of diffusion that is specific and passive, and which becomes saturated if all of the protein carriers are use is?
What will be an ideal response?