Which of the following will be obtained by the reduction of butanal using NaBH4 followed by treatment with water?
A) butene
B) 1-butanol
C) 2-butanol
D) butanoic acid
B
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Wegener's idea was that all the Earth's landmasses had once been a _____ called _____.
A ) series of islands, Gowannaland B ) single point, a singularity C ) submerged seafloor, Gaia D ) supercontinent, Pangea
Projected climate changes, such as warmer temperatures, in Southwest Asia and North Africa will likely decrease the amount of runoff in the region, further stressing stream and rivers and reducing hydroelectricity potential and diminishing water
available for the region's increasingly urban population. Indicate whether the statement is true or false
Changes in the composition of the atmosphere that cause the Earth’s climate to change are one example of a(n) ____________________ cause of climate change
Fill in the blank with correct word.
The Endangered Species Act requires that agencies add or remove species from the endangered list based on
A. biological factors alone. B. the instrumental value of the species. C. the intrinsic value of the species. D. the economic feasibility of saving the species. E. the practicality of saving the species.