Answer:
Viscosity is a measure of how much a liquid resists flowing freely.
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<span>Any number of disturbances, including loud noise or a skier's motion, can cause an avalanche. Even pollution in the Northeast can find its way to Europe, hitching a ride with prevailing winds and causing avalanches in the Alps. That's because snowpack conditions affect the likelihood of avalanches. Soot warms snow and ice faster, creating melt and weakening snow layers, which promulgates avalanches.
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Answer: Experimental design means creating a set of procedures to test a hypothesis. A good experimental design requires a strong understanding of the system you are studying. By first considering the variables and how they are related ( Step 1 ), you can make predictions that are specific and testable
Explanation:
A hypothesis (plural hypotheses) is a proposed explanation for a phenomenon. For a hypothesis to be a scientific hypothesis, the scientific method requires that one can test it. Scientists generally base scientific hypotheses on previous observations that cannot satisfactorily be explained with the available scientific theories. Even though the words "hypothesis" and "theory" are often used interchangeably, a scientific hypothesis is not the same as a scientific theory. A working hypothesis is a provisionally accepted hypothesis proposed for further research, in a process beginning with an educated guess or thought.
