What typically happens to benefits as the amount of an activity is increased?

The answer is, "As the amount of an activity is increased, marginal benefit decreases".

A marginal benefit refers to the extra fulfillment or utility that a man gets from consuming an extra unit of a good or services. A man's minimal advantage is the greatest sum he will pay to consume that extra unit of a good or services.

What typically happens to benefits as the amount of an activity is increased? As the amount of an activity increases, the marginal benefits decrease.

The marginal benefit refers to the amount of increased benefits a consumer receives from consuming one ore additional unit of a good or service. As the consumer consumes more of something, the marginal benefit will start to decease because they have received the benefit to the max potential.