Answer:
caffeine — independent variable
Explanation:
Independent variable: In psychological research, the term independent variable is defined as the variable that is changing, altered, and manipulated by the experimenter or the researcher. The independent variable is responsible for affecting the dependent variable in an experiment i.e, any changes in the independent variable will cause a direct effect on the dependent variable.
In the question above, the pair that correctly identify a variable in this experiment is the caffeine — independent variable.
The space race affected the Cold War because both the USA and the Soviet Union wanted to prove to each other that they were superior to the other, through technology and innovation. It was, simply put, a literal space race. Each country was trying to make more breakthroughs in outer space, just to show each other (along with other countries) that there way of life was better than the other. This was important because it pushed our technology and exploration to a whole new level very quickly.
Answer:
It would be the Archaic period.., started around 10,000 years ago.
0A.how can I get my dog come when I call?
