Layers of sediment at the bottom of the river. a
Weathering

b
Erosion

c
Deposition

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.

i am confused, what is the question? i can you out if you put it into more depth.

i have to go with a for this one

answer; through play and social interaction;