Biology, 16.10.2020 19:01 southerntouch103

A student delivers balloons after school and notices the volume of the balloon often changes by the time he delivers them, depending on the season. He decides to measure the temperature and the volume of the balloon to see if there is a correlation. Which of the following would be a good control and
constants for his experiment?
A. The control is a similar balloon left in the shop measured before and after the delivery. The constants are the type of balloon and the amount of gas put into the
balloon
B. The control is the amount of gas put into the balloon. The constants are the type of balloon, and the time of day for the delivery.
C. The control is the type of balloon. The constants are the day of the week he delivers, and the amount of gas in the balloon.
D. The control is a balloon measured in the shop each day. The constants are the time of day for the delivery and the kind of balloon
OC

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A student delivers balloons after school and notices the volume of the balloon often changes by the...