Your answer is the second one geologic dating
Answer: 21
Explanations: because 9+10 =21
Enzymatic activity will increase as more enzyme is added but will stop once all the substrate has been reacted with as it has nothing to act on
Abiotic factors are anything nonliving that help biotic, or living things. Abiotic features include wind, water, ice, sand, rocks ,or even things such as temperature. They are nonliving things. Biotic includes all things living such as humans, plants, and animals. All biotic things rely on nonliving abiotic features to survive.