It is possible for some species in a food we’d to be a primary consumers and a secondary consumer at the same time? 1- true
2- false

individual oxygen atoms are formed during photosynthesis.-c.

all these collisions do one thing, and that thing is explained in the last option. when dusst, rocks and ice collide, they harden and form giant layers of rocks or hard ice.

d)   to harden materials to form different parts of earth’s layers

hope it ,

bioteacher101

idk about that one.