The Green Revolution puts more food on the global table as it increases the diversity of crop varieties that are planted
a. True
b. False
Indicate whether the statement is true or false
False
RATIONALE: In evolutionary terms, the Green Revolution has reduced the natural diversity of crop varieties that allows nature and farmer to turn to alternatives when adversity strikes.
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Mike stands at the edge of a cliff and throws one ball straight up and another ball straight down, both with the same speed. Both balls hit the ground at
A. different speeds. B. the same speed in different times. C. the same speed in the same time. D. none of the above
The mineral quartz is resistant to weathering in comparison to other minerals. Indicate whether the statement is true or false
Fossil fuels are considered nonrenewable sources of energy because ________
A) people are cutting down too many forests to allow trees to turn into coal B) they release carbon dioxide when they are burned C) carbon dioxide levels in the atmosphere are too high to allow fossil fuels to form D) they are used more quickly than they can naturally be replaced
If you observe a disconformity, you would infer that the region had experienced ________
A) deposition of sedimentary layers on crystalline igneous or metamorphic rocks that are exposed at the surface of the earth. B) uplift and tilting of sedimentary units that exposes them to erosion over a period of time with subsequent renewed deposition C) intrusion of igneous rocks into a depositional setting, forcing the sedimentary layers upward and possibly deforming them, followed by subsidence of the remaining sedimentary layers and renewed deposition D) deposition in shallow water, uplift or lowering of sea level enough to expose the rocks to erosion and non-deposition for a period of time, and subsequent resubmergence of the remaining sedimentary units where they experience new deposition