What percentage of all antibiotics used in the United States are added to animal feed?
A. 20%
B. 40%
C. 50%
D. 60%
E. 80%
Answer: E
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Modern monoculture agriculture
A. improves the nutritional quality of foods. B. reduces genetic diversity in crops. C. prohibits the use of pesticides. D. All of these statements are correct.
Animals that ingest sediment and extract the nutrients from it are called ________________. Fill in the blank(s) with the appropriate word(s)
Rip currents _____
a. move parallel to the shoreline b. are fast moving swash c. are caused by the motion of the combined Earth-Moon system d. are due to the centrifugal force of rotation e. flow toward deep water from the nearshore zone
Venus's atmosphere has much more carbon dioxide than that of Earth and its greenhouse effect is much stronger.
Answer the following statement true (T) or false (F)