29.  Which method of heat transfer can easily operate in outer space?

a) Conduction

b) Convection

c) Radiation

d) Heat

30.  Ocean currents serve to move what around the Earth?

a) Heat

b) DDT

c) Plankton

d) None of the above

31.  The movement or transmission of thermal energy through a substance is known as:

a) Radiation

b) Refraction

c) Conduction

d) Convergence

32.  Which substance has the highest heat capacity?

a) A pad of paper

b) A piece of metal

c) Pure water

d) Sea water

33.  Water is a good heat sink because it has a

a) high specific heat capacity.

b) low specific heat capacity.

c) high temperature.

d) low temperature.

For questions 34-38, put the following layers of the atmosphere in correct order from the ground up.

a) exosphere (space) b) stratosphere  c) troposphere   d) thermosphere     e) mesosphere

34. _________         [first layer]

35. _________         [second layer]

36. _________         [third layer]

37. _________         [fourth layer]

38. _________         [fifth layer]