A layer of rapidly changing density with depth is called a ________
A) halocline
B) lysocline
C) pycnocline
D) syncline
E) thermocline
C
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In rural areas, the majority of people
A. Work in trade and manufacturing B. Are involved in harvesting natural resources C. Work in goods exchange D. Are economically dependent on cities E. Work in information exchange
Greenhouse gases warm the atmosphere because they absorb incoming solar energy before it reaches the earth's surface.
Answer the following statement true (T) or false (F)
The diseases, famine, and enslavement that came with Spanish and Portuguese colonization brought what was probably one of humankind's largest population declines ever
a. True b. False Indicate whether the statement is true or false
In the food chain, a(n) ________ is another term for a consumer
A) autotroph B) heterotroph C) bryophyte D) photosynthetic plant E) producer