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5 votes
Helppppppppppppppppppp

Helppppppppppppppppppp-example-1
User Mylogon
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2 Answers

5 votes
It’s A because in every experiment you need some type of control
User Jaison
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2 votes

Answer:

if i had to guess it would be D

Step-by-step explanation:

Sorry if im wrong, but i wouldnt have any liquid on atleast one of them so i can compare and contrast the other coins to the regular 1p coins

User Mark Amery
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4.1k points