Saturn's moon Titan has rain like earth, but the rain is ________, not water
Fill in the blank(s) with correct word
methane
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Which of the following statements describes the overall effect of clouds?
A. They have a net warming effect on climate. B. They have a net cooling effect on climate. C. They are the most important feature in determining climate. D. They have no net effect on climate.
Give an example from the United States of a centrifugal force and a centripetal force
What will be an ideal response?
Which of the following statements about pH is true?
A) The pH scale measures the concentration of hydrogen ions in a solution. B) A pH of 3 is alkaline, a pH of 10 is acid. C) An acid is a substance that combines with a hydrogen in solution. D) On average, the pH of the ocean is moderately acidic.
Today, there are an estimated __________ multinational corporations (MNCs).
a. 100,000 b. 67,000 c. 58,000 d. 200,000 e. 170,000