Hai! I can't really see it clearly but A would match with R.
is there any way u could retake the picturee?
Answer:
A. Type of soil
Explanation:
A control experiment is the one that is used to checkmate the real experiment.
In this case, the fourth jar that contains the mixture of all the types of the soil is considered as the control experiment.
In a nutshell, it should be generally understood here that the type of soil serves as the control for the experiment.
B - the lion eats the grass—it cannot be A. because grass gives off o2 not co2
Answer:
first answer my question then i will answer yours
