2022lecgre 2022lecgre

14-04-2021
Biology

contestada

Why do scientists carry out experiments?
A.
Because scientific knowledge is based on observations

B.
Because scientific knowledge is full of untested theories

C.
Because scientists like to control variables

D.
Because scientists like to work in labs

Respuesta :

nemiel32 nemiel32

14-04-2021

Answer:

A

Explanation:

the scientist always makes a hypothesis

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