With increasing depth in the earth the temperature increases as well. This is called as the
A. pressure gradient.
B. geothermal gradient.
C. thermal gradient.
D. binary gradient.
Answer: B
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Which of the following is NOT a way to form layers in a sedimentary rock?
A. occurrence of a discrete event like a flood B. a change in climate of the region C. a change in the strength of the current D. a change in the supply of sediment E. All of these are ways to form layers.
The scientific peer-review process ensures that
A) scientific studies have proper design and methods and are free from bias. B) all scientific studies receive publication despite the level of bias. C) the results of scientific studies are permanent and certain. D) all published scientific studies have clearly defined control groups.
What do two-thirds of Indians use as fuel for cooking?
A) hydropower B) biomass C) kerosene D) electricity E) none of the above
There are ______________ core areas of wealthy industrialized countries, all of which are found in the Northern Hemisphere.
-four -five -three -two -six