Must answered :) do u think there is a difference between living and existing

There is a difference between living and existing as living is where you enroll yourself into society and life and take part and have fun whilst existing is just being there, in other words, not using yourself for a role that could help people in so much ways or even help yourself. Living is thrilling and exciting and existing is kinda just like an atom in space.

yes for example a rock exist but they don't live but humans live and exist

Explanation:

d. dissolved gasses, light intensity, pH level, and water availability

Explanation:

There are two types of factors which affect survival and reproduction of organisms, biotic and abiotic. Biotic factors are the living components and abiotic components are the non living components of ecosystem. Their interaction with each other affects the ecosystem and has an impact on the organisms of ecosystem.

Here, all options except d has some or the other biotic factor. Only option d has all abiotic factors which are dissolved gases, light intensity, pH level and water availability. Hence, option d is the correct answer.