The development of herbicide resistance in populations of weeds over several generations is an example of
A. organic farming.
B. biogeochemical cycles.
C. social Darwinism.
D. evolution.
Answer: D
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Brazil's east coast is dominated by African and Mestizo/African ethnicity
Indicate whether the statement is true or false
Compared to traditional tillage, conservation tillage ____.
A. reduces topsoil erosion B. accelerates water loss from the soil C. causes soil compaction D. does not require herbicides E. reduces the amount of carbon stored in the ground
What Asian country established "special economic zones" (SEZs) to produce goods for world markets?
A) Taiwan B) South Korea C) Japan D) Thailand E) China
Which of the following is FALSE?
A) Earth's energy budget is perfectly balanced. B) Earth's energy budget is unbalanced by latitude. C) Earth's energy budget is vertically unbalanced. D) Earth's energy budget is the cause of all weather. E) Earth's energy budget is the same at each location.