Alec adds some soil and plants to a large glass jar.
He waters the plants and then adds worms, and snails to the jar. Then places the lid tightly on the jar and sets it on a kitchen windowsill.
The Law of conservation of mass states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change, so quantity can neither be added nor be removed. Therefore, the quantity of mass is conserved over time.
Based on the statements below, which one is correct.
(1 point)
The mass will decrease when the animals die.
The mass will increase as the plants grow and decrease when the animals eat the plants.
The mass will neither increase nor decrease.
The mass will increase as the earthworm digests the soil.
1 answer