Of the three sciences, physics, chemistry, and biology, the most complex is
A. biology, because it is based upon both the laws of chemistry and physics.
B. physics, because it involves many mathematical equations.
C. chemistry, because there are so many possible combinations of atoms.
D. All three of these sciences are equally complex.
Answer: A
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A. These compounds are encountered frequently. B. The common names are shorter and easier to pronounce. C. The common names are more widely known. D. all of the above
An estuary is where rivers meet the ocean and where freshwater and seawater mix
Indicate whether the statement is true or false
The slow melting of blocks of stagnant ice in the land surface is the cause of ________.
A) cirques B) kettle holes C) eskers D) roche moutonnees E) ground moraines
Which of the following are probably the most abundant but least understood of all forms of life on Earth?
a. insects b. bacteria c. animals d. trees