The best description of anthropogenic activities is ________
A) human activities that increase greenhouse gases in the atmosphere
B) human activities that decrease greenhouse gases in the atmosphere
C) human activities that reduce carbon emissions through tax credits for reducing automobile emissions
D) human activities that reduce carbon emissions through taxing fuel used for automobiles
E) all activities by humans affecting the Earth and its biosphere
Answer: E
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Cyclone
?
The following questions refer to the above illustration of a middle-latitude cyclone. The dashed lines show the positions of the fronts six hours ago.
In which direction will the storm system apparently move?
A. northeast B. southeast C. east D. northwest
What piece of equipment was able to facilitate the new fields of stratigraphy and paleoceanography
with the data it generated? a. Clamshell samplers b. Deep water cameras c. Piston Corers d. Seismic profilers
One ongoing concern about transgenic crops that produce pesticides is that this trait may
A) kill other insects that are not pests. B) be so effective that all of the crop pests are eliminated. C) be transferred to other crops, such as soybeans or cotton. D) not kill pests that attack other crops, such as soybeans or cotton.
Bacteria that make their own organic compounds by obtaining energy from chemical compounds and not directly from light are ________.
A. chemosynthetic B. protists C. living off decaying organisms D. photosynthetic E. heterotrophic