The uppermost layer of Earth's structure is composed of mostly ________.
A. metals
B. olivines
C. silicates
D. oxygen and nitrogen
E. All of these choices are correct.
Answer: C
You might also like to view...
Basalt is a common type of
A) meteoritic rock B) sedimentary rock C) igneous rock D) metamorphic rock
Nuclear Binding Energy: The binding energy per nucleon of a nucleus
A. increases steadily as we go to heavier elements. B. decreases steadily as we go to heavier elements. C. is approximately constant throughout the periodic table, except for very light nuclei. D. has a maximum near iron in the periodic table and decreases after that for heavier elements. E. has a minimum near iron in the periodic table and increases after that for heavier elements.
A block is on a frictionless horizontal table, on earth. This block accelerates at 3.6 m/ when a horizontal force is applied to it. The block and table are then set up on the moon where the acceleration due to gravity is 1.62 m/
A horizontal force of 45 N is applied to the block when it is on the moon. What acceleration does this force impart to the block? A) 1.8 m/ B) 1.6 m/ C) 2.0 m/ D) 2.2 m/ E) 2.3 m/
Choose the list that is correct in order of size from largest to smallest
A) amino acids, genes, carbon dioxide, DNA B) genes, amino acids, DNA, carbon dioxide C) carbon dioxide, amino acids, genes, DNA D) DNA, genes, amino acids, carbon dioxide E) DNA, genes, carbon dioxide, amino acids