A marble has more density than an inflated balloon.
Explanation:
There are called inert gases, because they do not react with other elements.
Their waste feeds the plants, When animals die they decompose and become natural fertilizer plants. Plants depend on animals for nutrients, pollination and seed dispersal.
The correct answer should be letter choice C) There is an equal number of each type of atom on the reactant and product side. Its C) because if its trying to conserve mass, than that means save or be equally balanced so it should be even for both sides.