There's a form of light that is very energetic and can cause Dana eve to living cells and tissues the sun emits this type of light but much of it is blocked by ozone in the atmosphere

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

it is a. i hope this .

cuz some people don't have enough food. that's why we need more ppl to donate food to the hungry.