Question

the law of conservation of matter states that
a. matter should not be wasted
b. matter cannot be created or destroyed.
c. an equal amount of matter is always created somewhere whenever matter is destroyed.
d. only \green\ matter should be used for installing hr/acr systems

Explanation:

The law of conservation of matter is a fundamental scientific principle stating that in a closed system, the total amount of matter remains constant; it can only change form, not be created or destroyed. Options A refers to waste reduction, C contradicts the law, and D is unrelated to the scientific definition of the principle.

Answer:

B. Matter cannot be created or destroyed.