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According to the Scientific Method, in order to make a controlled experiment you NEED to have an hypothesis.
A controlled experiment consists of a test done by a scientist in which only one or a few variables are changed while the others remain constant in order to prove or disprove a hypothesis. This hypothesis is key to said experiment because it provides the starting point from which the professional can begin the procedure, as it helps focus on the subject that one is trying to get results from. Without a clear hypothesis, the outcome of the experimentation will not be valid nor specific.
Explanation:
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The answer is b always adding yes makes more than one
Answer:
a. I watch television often
b. Have you ever been to Janakpur
c. They sometimes play football on Saturdays
d. The weather is always bad in November
e. We seldom have fish for dinner
f. Pritam usually doesn't get up before seven
g. I was very tried and also I was hungry
h. Did you both enjoy the flight
Hope you get it correct, i tried to make g work
