An example of nonpoint source pollution is
A. pesticides blown from the land into the air.
B. an automobile tailpipe.
C. a smokestack from a power plant.
D. an oil leak from a home furnace.
E. a pipe discharging into a river.
Answer: A
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A 5.0-kg blob of clay moving at 2.0 m/s slams into a 4.0-kg blob of clay at rest. The speed of the two blobs stuck together after colliding is about
A) 1.1 m/s. B) 1.5 m/s. C) 2.5 m/s. D) none of the above
What is the colligative property of osmotic pressure?
A) The pressure exerted on biological membranes from the atmosphere B) The pressure exerted on biological membranes from salinity differences outside the cells C) The pressure exerted on biological membranes during temperature changes of water D) The pressure exerted on biological membranes when surrounding waters phase change
The statistical properties of the atmosphere of a region is that region's ________
Fill in the blank(s) with the appropriate word(s).
Longwave radiation (+ LW) arriving at the Earth's surface
A) comes primarily from infrared energy emitted by the atmosphere. B) comes directly from the Sun. C) comes from diffuse solar radiation. D) comes from UV radiation reflected from the bottoms of clouds.