pls mark as brainlist
Explanation:
The law of substitution is also known as the law of equi-marginal utility or the law of maximum satisfaction. ... According to this law, if a consumer is to use all the available resource in the consumption of a single commodity then marginal utility,derived from every additional unit will decrease successively.
Answer:
Oil
Explanation:
Oil is the most common fossil fuel internationally, seeing as it is in the top spot for usefulness.
Fungi are classified based upon how they reproduce. The rest of the factors do not include anything of their classification.