Answer:
c. Control is needed to reduce the effects of confounding or extraneous variables on the variables being studied.
Explanation:
A control is an observation or an experiment is designed to reduced the effects of the variables other than the independent variables. This will increase the reliability of the results. It also reduces the confounding effects on the various variable that is being studied.
Hence the correct option is (c).
Answer:
HYV seeds are used as a part of modern agricultural methods to increase yield of crops.
now my best guess would be that these seeds are associated with Agricultural Research, Green Revolution etc.
Explanation:
This would be an example of ____.
d. a defense mechanism, specifically PROJECTION