Increased levels of carbon dioxide in the atmosphere have been implicated in which of the following?
a. increased global warming
b. increased seawater acidity
c. decreased seawater temperatures
d. both increased global warming and increased seawater acidity
e. both increased global warming and decreased seawater temperatures
D
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Which of the following terms refers to the ratio of the mass of water vapour in a given volume (parcel) of air to the mass of the remaining dry air?
A. absolute humidity B. mixing ratio C. relative humidity D. dew point
In a photovoltaic system, an inverter is required to
A) directly convert surplus electricity into heat. B) generate electricity from solar energy. C) connect the DC current of the solar panel to the AC current of an electrical grid. D) convert AC from the solar panel into DC of the grid.
The ________ was largely responsible for preventing a food crisis in developing countries during the 1970s and 1980s
A) green revolution B) US government C) United Nations D) Ford Foundation E) IMF
a circular column of magma that rises from deep within Earth
What will be an ideal response?