When ice crystals form in the clouds, ________. a. heat energy ...

[Shelles]

When ice crystals form in the clouds, ________.
 a. heat energy is released
  b. the atmosphere becomes colder
  c. phase change from solid to liquid occurs
  d. the thermal mass of the atmosphere increases

Question 2

In a location where the train tracks run parallel to a road, a high speed train traveling at 60 m/s passes a car traveling at 30 m/s in the opposite direction. How long does it take for the train to be 180 m away from the car?
 a. 2.0 s
  b. 3.0 s
  c. 6.0 s
  d. 9.0 s
  e. 18.0 s

[prumorgan]

Answer to Question 1

a

Answer to Question 2

A