A variety of oranges that have been selectively bred to be juicer and sweeter are a result of
A. natural selection.
B. artificial selection.
C. adaptation.
D. reproductive isolation.
E. differential reproduction.
Answer: B
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A sinuously curving, narrow ridge of coarse sand and gravel is called an esker. Eskers form along the channel of a meltwater stream that flows beneath a glacier, in an ice tunnel, or between ice walls beneath the glacier. As a glacier retreats, the steep-sided esker is left behind in a pattern roughly parallel to the path of the glacier. What will be an ideal response?
Hindu burial rites mandate that bodies be cremated on funeral pyres, preferably on the Ganges River in Varanasi. This further exacerbates the already critical problem of
A. deforestation. B. the disposal of the ashes. C. relations with Muslims who have completely different burial rites. D. finding sacred rivers unpolluted by factories.
Fractures in rock that have not involved any fault slippage are called joints.
a. true b. false
Nearly all beach sand is quartz
Indicate whether the statement is true or false