Judge the following sentence according to the criteria given below. When farming in steep terrain it is best to modify the slopes by making terraces because the flat terrace surface slow down the water, decrease erosion and allow the water to soak into th
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.
Answer: A
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Minerals are ____________________ ___________________, because they are solids with orderly arrangements of
atoms in three-dimensional networks. Fill in the blank(s) with the appropriate word(s).
Quartz is made of the elements silicon and oxygen; therefore, it is a compound
Indicate whether the statement is true or false .
Why are some minerals useful as metamorphic index minerals, while other minerals are not?
What will be an ideal response?
In terms of mineral resources, recycling is ________ as raw materials become more ________ and ________ are more plentiful.
A. Slowly increasing; scarce; wastes B. Quickly decreasing; scarce; wastes C. Staying about the same; expensive; environmental laws D. Slowly decreasing; scarce; environmental laws E. Quickly increasing; expensive; environmental laws