Will give !

most meteoroids that enter earth’s atmosphere are

a.
kilometer-wide rocks that are leftover from the formation of the solar system

b.
particles the size of sand grains that come from many sources

c.
pebble-sized rocks that are left behind by comets

d.
boulder-sized rocks that come from the asteroid belt

An  atom  (ours, not carroll's) consists of a positively charged  nucleus, surrounded by one or more negatively charged particles called  electrons. the positive charges equal the negative charges, so the atom has no overall charge; it is electrically neutral. most of an atom's mass is in its nucleus; the mass of an electron is only 1/1836 the mass of the lightest nucleus, that of hydrogen. although the nucleus is heavy, it is quite small compared with the overall size of an atom. the radius of a typical atom is around 0.1 to 0.25 nanometres (nm), whereas the radius of a nucleus is about 10-6  nm.  *  if an atom were enlarged to the size of the earth, its nucleus would be only 200 feet in diameter and could easily rest inside a small football stadium.read more on -

You yeah with the side of the yeah with a little bit of yeah.