Judge the following sentence according to the criteria given below: The variable flow of tidal currents in two directions is an obstacle to efficient electricity generation by a tidal power plant BECAUSE electrical turbines run best when they run at
a constant velocity. A) The assertion and the reason are both correct, and the reason is valid.
B) The assertion and the reason are both correct, but the reason is invalid.
C) The assertion is correct, but the reason is incorrect.
D) The assertion is incorrect, but the reason is correct.
E) Both the assertion and the reason are incorrect.
A
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A) has little effect on POTET. B) typically increases when dense vegetation is present at ground level. C) is a measure of how much sunlight a given type of soil can absorb. D) is eliminated on bare soils.
Most international migrants are:
A) political refugees B) workers looking for jobs C) driven away by environmental devastation D) fleeing from war E) none of the above
What are the most common sources of groundwater contamination?
Biodiversity is ________
A) the three dimensional distribution of species and biological features B) the relative abundance of the different species in a community C) the total number of species in a location D) difference in variety and abundance of species from place to place E) the variety of life in all its forms and combinations and at all levels of organization