All of the following are issues that hamper our ability to feed feeding the world's hungry EXCEPT
A. food subsidies and trade barriers.
B. higher fuel costs.
C. insufficient worldwide agricultural production capacity.
D. rising demand.
Answer: C
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Which of the following properties would be least useful for identifying a sample of calcite?
A) reaction to hydrochloric acid B) three planes of cleavage C) white color D) hardness of 3 on the Mohs scale
Things like weather and family can be pull factors for some and push factors for others
Indicate whether this statement is true or false.
Because of the harsh contrast in salinity, estuaries are among the last productive of marine habitats
Indicate whether the statement is true or false
When did the Himalayan Mountains form?
A) Cenozoic Era B) Paleozoic Era C) Mesozoic Era D) Devonian Period