Which of the following is one of the human activities with the greatest harmful impact on the environment?
a. Food production
b. Transportation
c. Overall resource use
d. Home energy use
e. All of the above
E
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Why can introduced species be problematic?
A) They sometimes outcompete native species and reduce biological diversity. B) They consistently find it difficult to survive. C) They can reduce demand for native seafood. D) They often produce toxins dangerous to humans.
Both direct and indirect electric conversion of solar radiation is associated with
A) active solar energy systems. B) passive solar energy systems. C) calibrated solar energy systems. D) graduated solar energy systems. E) coordinated solar energy systems.
Can soils can be eroded from distant sources and deposited as soil in new locations?
A) Yes, they are made of sediments and can be transported like sediments. B) No, soils develop in place through the complex weathering of sediments and other materials. C) Yes, the processes of transportation help to break down larger sediments to make soils. D) No, once a soil is created in a location, it cannot be weathered and eroded.
Which air masses are formed in regions where long, clear nights allow for strong radiational cooling of the surface?
a. cT and mT b. cP and cA c. mT and cA d. cT and cP e. cA and cT