Answer the following question given this paragraph: Test the hypothesis. Make predictions based on the hypothesis and then determine if they are correct. This may involve carrying out an experiment. An experiment is a controlled scientific test that often takes place in a lab. It investigates the effects of one factor, called the independent variable , on another factor, called the dependent variable . Experimental controls are other factors that might affect the dependent variable. Controls are kept constant so they will not affect the results of the experiment. Q: What is the term for the affected factor in an experiment? A:

OPTIONS:
- multiple variable
- stable variable
- independent variable
- dependent variable

Answer: dependent variable

Problem: OPTIONS:
- change
- evolution
- abilities
- fitness
Q: Answer the following question given this paragraph: Animal communication, like most other animal behaviors, increases the ability to survive and have offspring. This is known as fitness. Communication increases fitness by helping animals find food, defend themselves from predators, mate, and care for offspring. Q: What term describes the overall ability of an animal to survive and produce offspring? A:
Answer: fitness

Problem:OPTIONS:
- rinse, reuse, recycle
- remove, reduce, reuse
- reduce, reuse, re-educate
- reduce, reuse, recycle

Answer the following question given this paragraph: Reduce, reuse, and recycle. There are steps that you personally can take to conserve our natural resources and reduce waste. The waste that an individual creates is small in proportion to all the waste produced by society. Yet all small contributions, when added up, make a difference. Q: What three rs represent the steps that you personally can take to conserve our natural resources and minimize waste? A:
****
A: reduce, reuse, recycle

Answer the following question given this paragraph: Greenhouse gases include CO 2 , H 2 O, methane, O 3 , nitrous oxides (NO and NO 2 ), and chlorofluorocarbons (CFCs). All are a normal part of the atmosphere except CFCs. The table below shows how each greenhouse gas naturally enters the atmosphere ( Table below ). Q: Co 2 , h 2 o, methane, o 3 , nitrous oxides (no and no 2 ), and chlorofluorocarbons (cfcs) are known as what type of gases? A:
OPTIONS:
- chemical gases
- hydrogen gases
- carbonate gases
- greenhouse gases
greenhouse gases

Answer the following question given this paragraph: Problem-Solving Strategies for the Effects of Heat Transfer 1. Examine the situation to determine that there is a change in the temperature or phase. Is there heat transfer into or out of the system? When the presence or absence of a phase change is not obvious, you may wish to first solve the problem as if there were no phase changes, and examine the temperature change obtained. If it is sufficient to take you past a boiling or melting point, you should then go back and do the problem in stepstemperature change, phase change, subsequent temperature change, and so on. Identify and list all objects that change temperature and phase. Identify exactly what needs to be determined in the problem (identify the unknowns). A written list is useful. Make a list of what is given or what can be inferred from the problem as stated (identify the knowns). Solve the appropriate equation for the quantity to be determined (the unknown). If there is a temperature change, the transferred heat depends on the specific heat (see Table 14.1) whereas, for a phase change, the transferred heat depends on the latent heat. See Table 14.2. Substitute the knowns along with their units into the appropriate equation and obtain numerical solutions complete with units. You will need to do this in steps if there is more than one stage to the process (such as a temperature change followed by a phase change). Check the answer to see if it is reasonable: Does it make sense? As an example, be certain that the temperature change does not also cause a phase change that you have not taken into account. Q: What is the term of a phase change if solid water has it's average kinetic energy increased to change it to liquid water? A:
OPTIONS:
- boiling
- freezing
- evaporation
- melting

Answer: melting

input with options: Answer the following question given this paragraph: Determine the total number of valence (outer shell) electrons. For cations, subtract one electron for each. Q: Electrons in the "outer shell" are also known as what kind of electrons? A:
OPTIONS:
- charged
- intermediate
- static
- valence
output:
valence