Which best describes what solar systems are comprised of?

a. stars, planets, moons, asteroids, and comets
b. galaxies
c. universes
d. planets, moons, comets, and asteroids

The answer is A. A solar system is a part of a galaxy and a universe, so B and C is incorrect. I hope this helped! :-)

atomic = no of protons.

mass number-atomic number = neutron number

s the environmental science is a broader field that incorporates many elements of earth and life sciences, whereas ecology is usually more focused on how organisms interact with each other and their surroundings, and often on a very specific population of living things. soo yea

explanation: