Read the sentence from "The Crab That Played with the Sea.” Now, while the two were talking together, Pau Amma the Crab, who was next in the game, scuttled off sideways and stepped into the sea, saying to himself, ‘I will play my play alone in the deep waters, and I will never be obedient to this son of Adam.’ The underlined words are an example of Which is the best definition of the word tone?

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.