D. Mountains and Basins.
Hope this helps!
Answer:
a) reactions to the comedy skit.
Explanation:
The independent variable is what researchers are observing, it is called independent because researchers do not know how it will react to the conditions it is exposed, in this case, the comedy skit after a regular night’s sleep and after a sleepless night.
Answers b and c have nothing to do with the current experiment.
Answer d could be right but sense of humour will be the final conclusion of the study. First, researchers will observe students´reactions (independent variable) which will lead to a more general conclusion; sense of humor affected by the amount of sleep.
Bartering is trading, in today's society we buy and sell using currenxy
Answer:
The awnser is B They did not have alot of money
Explanation:
It say they both ithe came with little to no money
