The most serious drawback to fuel cells is the expense of providing an oxygen source.

Answer the following statement true (T) or false (F)


False

Environmental & Atmospheric Sciences

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What contributes to the high biological activity and surface nutrients in southern polar waters?

A) Deep-water upwelling B) Weak stratification C) There is a lack of continental margins D) All are contributing factors

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Forming the cell walls of stems, leaves, and roots, what compound is the primary structural constituent of plant tissues?

A) protein B) starch C) cellulose D) enzymes E) chlorophyll

Environmental & Atmospheric Sciences

Which of the following can be a chronic effect of pesticides on humans?

A. Immune system problems B. Fetal deformities C. Cancer D. Parkinson's disease E. All of these are correct

Environmental & Atmospheric Sciences

Which of these countries has the lowest share of proven natural gas reserves?

A. United States B. Russia C. Qatar D. Iran

Environmental & Atmospheric Sciences