Question

1. a carefully designed test done under controlled conditions is called a(n): *

a. natural law.
b. experiment.
c. common law.
d. analysis.

Explanation:

An experiment is a carefully - designed test carried out under controlled conditions to observe and measure the effects of variables. Natural law describes fundamental regularities in nature, common law is a body of legal precedents, and analysis is the process of examining something.

Answer:

B. experiment