AB maybe I’ll make sure just wait
Answer:
a weightlifter lifts a 20 kilogram barbell above his head
The well - designed experiment test one factor at a time. The answer to the question above is letter A. 1. The items that are being tested are the independent variables and that they cause the dependent variables to change.
Answer:savdasfvasfvasdv asaaaaaaaaaaaaaaaaaaaaa
Explanation: