Which of the following is considered a biological human health hazard?
A) earthquake
B) collisions
C) pollutant
D) malaria exposure
E) cigarette smoking
Answer: D
Environmental & Atmospheric Sciences
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Which of the following is a positive ion?
A. Ca+2 B. Na+1 C. Al+3 D. Mg+2 E. all of the above
Environmental & Atmospheric Sciences
Photosynthesis
a. converts glucose into energy and water b. requires the combustion of carbon c. produces carbon dioxide and oxygen gas d. yields glucose and oxygen gas as products e. yields glucose and carbon dioxide as products
Environmental & Atmospheric Sciences
Most glacial ice originates as
A) fluffy snow. B) sea water. C) hard ice. D) soft ice.
Environmental & Atmospheric Sciences
A system wherein peasants farm small plots of land for their own subsistence is referred to as
A) minifundia. B) ejidos. C) latifundia. D) plantations. E) encomienda.
Environmental & Atmospheric Sciences