In an experiment to test whether sleep deprivation affected student exam grades, a group of students (Group A) slept their norma
l amount before coming to the exam. The other group (Group B) only had 2 hours of sleep. Group B represents the ______. A. experimental group
B. hypothesis
C. variable
D. control group
In experiments, the experimental group refers to the group of subjects that receives special treatment or in which the scientist or researcher intervenes. This is the opposite of a control group that does not receive treatment and therefore, it is used as a reference to measure the effect of the treatment.
This implies, in the experiment presented Group A is the control group as they do not have special treatment because they sleep normally and Group B is the experimental group as the researcher modifies their sleep time and reduces it two hours which means in this group there is a treatment or intervention.
1 weathering and erosion must move pieces of granite to other locations
Explanation:
A thick layer of humus must form on top of the granite. The granite must be broken into smaller pieces by weathering processes. Erosion by wind and water must move pieces of granite to other locations.
