Which of the following are root causes of hunger?
a. Low income.
b. Government manipulation of food prices.
c. Excess population growth.
d. a and b above.
e. a and c above.
d
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Prove the following for a hexagonal cellular system with radius R, reuse distance D and given the value of N
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____ is lightweight, having a specific gravity of only 2.7 times that of water and approximately one-third that of steel.
A. Tin B. Lead C. Aluminum D. Bauxite
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What capacity control method is popular with open and semi-hermetic reciprocating compressors?
a. Slide valves b. Cylinder unloading c. Plug valves d. Throttling unloaders
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_______________ are defined as materials for which there is scientific evidence of acute or chronic health effects in exposed employees.
Fill in the blank(s) with the appropriate word(s).
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