30. Bacteria lived in the soil play a vital role in recycling the carbon and nitrogen needed by plants.
________________________
A BC D
31. Some snakes have hollow teeth are called fangs that they use to poison their victims.
____ ______________
AB C D
32. Stars derive their energy from thermonuclear reactions that take place in their heat interiors.
___ ___ ________ ____
AB C D
33. Carrie Chapman Call organized the League of Woman Voters after successfully campaign for
_________________
AB C
the constitutional amendment that gave women the right to vote.
_______
D
34. Any group that conducting its meetings using parliamentary rules will encounter situations where
_____________________
AB C
prescribed procedures cannot be applied.
_____
D
35. The strongly patriotic character of Charles Sangster’s poetry is credited about greatly furthering_______ ________ ____________
AB C D
the cause of confederation in Canada.
36. Jessamyn West’s first and most famous novel, The Friendly Persuasion , describes the life of a
_________________________
AB C
Quaker farmed family in the mid-1800’s.
__________
D
37. One inventor that Thomas Edison can take credit for is the light bulb.
______ ________ __ ___
A B C D
38. Electric motors range in size from the tiny mechanisms that operate sewing machine to the great ____ _________________
A BC
engines in heavy locomotives.
______________
D
39. The nitrogen makes up over 78 percent of the Earth’s atmosphere, the gaseous mass
____________________
A B C
surrounding the planet.
_________
D
40. The Mississippi, the longest river in the United States, begins as small, clear stream in
___ ______ _____
ABC
northwestern Minnesota.
__________
D