Susan Solomon led the scientific expedition that A) measured ...

[tth]

Susan Solomon led the scientific expedition that
 
  A) measured the rate of temperature increase at isolated places on earth, such as the north pole and the Gobi desert.
  B) studied the problem of ozone depletion over Antarctica.
  C) measured the carbon-dioxide content of the atmosphere at many places on Earth.
  D) measured the ozone content of the upper atmosphere at many places above the surface of the earth.
  E) studied in detail the atmospheric effects (especially carbon-dioxide injections) of large active volcanoes.

Question 2

The moon's acceleration is directed
 
  A) forward, along its direction of motion.
  B) outward, away from Earth.
  C) zero.
  D) backward, opposite to its direction of motion.
  E) inward, toward the center of Earth.

[aloop]

Answer to Question 1

B

Answer to Question 2

E