An Example of a Positive Externality Is

question 80

Multiple Choice

An example of a positive externality is:

• A) vaccinations.
• B) pollution.
• C) second-hand smoke.
• D) noise from jet engines.

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Definitions:

Gastrula

An early embryonic stage following the blastula, characterized by the formation of three primary germ layers that will develop into different tissues and organs.

Developmental Events

Significant occurrences or processes that contribute to the growth or maturation of an organism at any stage in its life cycle.

Conception

The process of fertilization where a sperm fuses with an ovum, resulting in the formation of a zygote and the beginning of pregnancy.

Menstrual Period

A monthly cycle in which the lining of the womb (uterus) sheds, leading to bleeding through the vagina, part of the female reproductive cycle that prepares the body for pregnancy.