What can be said about newer batteries compared to older batteries? Select all that apply.

They are more expensive to produce.
They can be made bigger and heavier.
They are cheaper to produce.
They can be made smaller and lighter.

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.

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