Avoiding sun exposure can reduce the number of flare-ups in a person with
arthritis.
acquired immunodeficiency syndrome.
allergies.
lupus.

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

idk and i also need to know where are those bio brainy acts lol