most scientific questions are based on
1.) opinions.
2.) hypotheses.
3.) observations.
4.) experimental data.

The scientific investigations basically start with an observation which is followed by thought provoking questions. For example – newton discovered gravity when he observed a falling apple. He realized that instead of falling in any other direction , an apple always fall towards the ground. This observation led to the discovery of gravity. There are several other observations made by scientist which led to great findings such as- Sky being blue in color, Appearance of moon during the nighttime only, etc

most scientific questions are based on 1.) opinions.2.) hypotheses. 3.) observations.4.) experimental data.

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most scientific questions are based on
1.) opinions.
2.) hypotheses.
3.) observations.
4.) experimental data.