Which of the following is likely to be the most valid source of information about pollution? a. a website supported by manufacturing companies b. an internal report by the Environmental Protection Agency (EPA) c. a website supported by environmental groups d. a television news program Please select the best answer from the choices provided A B C D

coal is not sustainable because it will one day run out.

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

answer diabetes mellitus;