Pathogens
A. include all disease-causing organisms.
B. are those disease causing agents for which medicines do not exist.
C. are anything causing death and disease including toxic chemicals.
D. include only bacteria and viruses.
Answer: A
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Water precipitated over land completes its cycle as it
A) enters streams and lakes and makes its way to the oceans. B) percolates into the ground. C) evaporates from the surface to the atmosphere. D) all of the above
The orogenic event of the North American Cordillera, which began in the Late Cretaceous and extended into the
Cenozoic, is the ____. a. Laramide b. Sevier c. Nevadan d. Antler e. Caledonian
Radiation fog forms best on a
a. clear winter night with a slight breeze. b. cloudy winter night with a strong breeze. c. clear summer night with a strong breeze. d. cloudy summer night with a slight breeze. e. cloudy winter night with a slight breeze.
Ignoring human alterations to the landscape, what causes floods, and what is their value ecologically?
What will be an ideal response?