Earth’s atmosphere is a layer of gases, which provides . oxygen for people and animals, and carbon dioxide for plants
oxygen for people and animals, and methane for plants
oxygen for people, animals, and plants
oxygen for people and animals, and carbon monoxide for plants

d is the correct answer.

b is incorrect because it makes food by itself

c is incorrect because us humans don't know how to produce their own food using the sun like plants.

a is incorrect because consumers can depend on carnivores for eating food for consumers to eat the dead organism. same thing with omnivores.

answer; emotional intelligence (ei);

answer; can each be concretely realized in different ways;