Most igneous rocks are classified as either volcanic or plutonic based on their ____
A)size and location
B)magnesium content
C)iron content
D)texture and composition
E)size and composition
D
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An ion that is an essential nutrient for plant growth, and which was studied by Bormann and Likens, is the ____________________ ion
Fill in the blanks with correct word
Which list is correctly ordered from the least rapid to the most rapid type of landslide?
a. ?debris flow, rockfall, rotational slump b. ?debris flow, rotational slump, rockfall c. ?rotational slump, debris flow, rockfall d. ?rotational slump, rockfall, debris flow e. ?rockfall, debris flow, rotational slump
Which of the following types of orbitals can hold 10 electrons when filled?
A) s B) p C) d D) f
Except for the problems of sulfur, coal, like oil and natural gas is a very clean fuel, which is why it is popular for commercial uses.
Answer the following statement true (T) or false (F)