Transpiration refers to
A) the movement of free water molecules away from a wet surface.
B) runoff.
C) an amount of moisture loss from the surface that cannot be measured.
D) the outward movement of water from plant leaves.
E) evaporation.
D
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Which type of fertilizer has the greatest potential to contaminate streams?
A. granular commercial fertilizer B. manure C. slow-release fertilizer D. composted vegetable scraps
Which of the following are all examples of minerals?
a. bronze, steel, glass, aluminum, pencil lead b. gold, silver, uranium, lead, silica, iron c. copper, ice, quartz, topaz, diamond, corundum d. water, mercury, metallic hydrogen, limestone e. petroleum, coal, iron, feldspar, basalt
Large regions characterized by a certain climate and dominant plant life are called ____.
A. ecosystems B. communities C. populations D. habitats E. biomes
Which of the following beds would be easiest for a stream to erode?
A) Lined with gravel and cobbles B) Bedrock C) Lined with sand and gravel D) Lined with silt