What gene pair consisting of dominant allele and reccesive allele

it cools slower in the earth meaning the crystals have more time to form than lava on the surface

it's c.us forest service

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