Answer:
The correct answer will be-making observations (first step).
Explanation:
The senses are the physiological response of the external surrounding that allows us to live like sight, taste, smell, touch and hearing.
The scientific method begins with making observations of the natural world followed by framing a hypothesis which could be proved or disproved by performing experiments.
The senses allow us to sense the natural phenomenon through sensory organs which is included in the process of making observations.
Thus, making observations is the correct answer.
