An unconformity which is formed between two sets of essential parallel beds of sedimentary rocks is called
a. an angular unconformity
b. a disconformity
c. a nonconformity
d. a paraconformity
Answer: b. a disconformity
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What element is used to link nucleic acids in all organisms?
a. Carbon b. Nitrogen c. Silicon d. Phosphorus
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A) hydration B) bromination C) both a and b D) neither a nor b
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a. f b. w c. s d. y