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Physics, 22.10.2020 22:01 AliMe52

My grass is dying, and I believe it's because it is not getting enough water. So I decide to conduct an experiment by watering the backyard everyday for two
weeks, while leaving my front yard alone. After two weeks I measure the length
of my grass to determine which grew better. What variable(s) should be
controlled?

a. amount of sunlight
b. temperature
c. type of grass
d. all of the above

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