Decomposers are like the housekeepers of an ecosystem. Without them, dead plants and animals would keep piling up with the nutrients the soil needs trapped inside. Decomposers clean up the dead material by processing it and returning the nutrients to the soil for producers.
You would use A.) Triple beam balance as it is the only option that measures mass.
B measures length, C and D measure volume.
That it would keep the animal safe
I'd go with A. can interact to influence a trait, such as eye color
Answer: Option B. core samples
Explanation: this is the only option that is not used for locating minerals