Ques: Answer the following question given this paragraph: The geologic time scale is divided into eons, eras, periods, and epochs. Q: The geologic time scale is divided into eons, eras, periods, and? Choices: - cultures - tropics - zones - epochs A:
Ans: epochs

Ques: Answer the following question given this paragraph: For a full description of weight, look at Forces: Mass versus Weight. In sum, weight is the result of the force of gravity being opposed by the normal force. As we just learned, objects in orbit are in freefall; they have nothing exerting a normal force against them and thus no weight. Q: What property is the result of the force of gravity being opposed by the normal force? Choices: - light - density - sound - weight A:
Ans: weight

Ques: Answer the following question given this paragraph: Since the mid 1800s, Earth has warmed up quickly. Look at Figure below . The 14 hottest years on record have all occurred since 1900. Eight of them have occurred since 1998! This is what is usually meant by global warming . Q: Eight of the hottest years on record have occurred since what year? Choices: - 2002 - 1997 - 1991 - 1998 A:
Ans: 1998

Ques: Answer the following question given this paragraph: A camp fire is an example of basic thermochemistry. The reaction is initiated by the application of heat from a match. The reaction converting wood to carbon dioxide and water (among other things) continues, releasing heat energy in the process. This heat energy can then be used to cook food, roast marshmallows, or just keep warm when it's cold outside. Q: What kind of energy is released when the thermochemical reaction of a campfire converts wood to carbon dioxide and water? Choices: - ultraviolet - light - smoke - heat A:
Ans:
heat