How has one invention in telecommunication helped lead to the next one?

most community's take hundreds of years to become stable

idk why hjggjhjkhj

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.

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