Question

why are experiments often performed in laboratories?
a. you can control variables more easily.
b. they are better at representing the real world.
c. scientists only want to know what happens in labs.
d. there are more variables in a laboratory setting.

Explanation:

In a laboratory, conditions can be manipulated and variables can be controlled precisely, which helps in accurately determining cause - and - effect relationships. Real - world settings are often too complex and uncontrolled for such precise experimentation. Scientists are interested in real - world phenomena and use lab experiments to understand them better. Laboratories have fewer uncontrolled variables compared to the real world.

Answer:

A. You can control variables more easily.