Why might a sweet potato plant genetically engineered for a higher protein content have a greater intolerance for nitrogen-poor soils?
A) The plant requires more nitrogen so that it can produce a higher protein content.
B) Genetically engineered plants tend not to be as hardy as regular plants.
C) Plants genetically engineered to be more nutritious place greater demands on the soil.
D) Because it contains higher protein content the plant would actually help in keeping the soil nitrogen-rich.
Question 2
What would be a major advantage and a major disadvantage of desalinizing water by freezing?
A) The supply of ocean water is vast, but ocean water is too salty to make this method cost efficient.
B) The supply of ocean water is vast, but this technique is limited to northern coastal regions.
C) The supply of ocean water is vast, but time and energy is better spent hauling icebergs to coastal regions in need of fresh water.
D) all of the above
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