Species like the african cheetah, northern elephant seal, and florida panther have all experienced a genetic bottleneck; what is the primary outcome of this experience?

d. the weight of the book

answer; i believe the correct answer to the above question is ( friction)

the earth is thought to have been formed about 4.6 billion years ago by collisions from a cloud of hydrogen, helium, rock, ice and other materials. these were pulled together by gravity to form objects in and around earth like- asteroids and small early planets called planetesimals.

so, the best possible answer to this question will be option d- to harden materials to form different parts of earth’s layers