The barren surface composed of consolidated material, usually of exposed bedrock is ________
A) desert armor
B) a hamada
C) a reg
D) an erg
E) a playa
Answer: B
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The largest snowflakes would probably be observed in ____ air whose temperature is ____ freezing
A) moist; near B) dry; near C) moist; well below D) dry; well below
What term denotes a sand bar built across the former mouth of an estuary, separating it from the open sea?
What will be an ideal response?
El Nio is a shift in the circulation in the Pacific Ocean that occurs every year in December.
a. true b. false
How do a-amylase and b-amylase differ in their functions?
A) They do not differ, they are two different enzymes which perform the same function. B) a-amylase hydrolyzes a(1 ? 6 ) glycosidic bonds, but b-amylase hydrolyzes b(1 ? 4 ) glycosidic bonds. C) a-amylase hydrolyzes a(1 ? 6 ) glycosidic bonds at in an orderly way, but b-amylase hydrolyzes a(1 ? 4 ) glycosidic bonds at random. D) a-amylase hydrolyzes a(1 ? 4 ) glycosidic bonds at random, but b-amylase hydrolyzes a(1 ? 4 ) glycosidic bonds in an orderly way.