Environment in which coal can form

hi there the answer is

from google:

"coal formed millions of years ago when the earth was covered with huge swampy forests where plants - giant ferns, reeds and mosses - grew. as the plants grew, some died and fell into the swamp waters."

away from the curb

explanation:

the wheels would then hit the curb if it started to rolling, decreasing the chance of an accident.

particle   p is an electron and particle q is a neutron