Entomology is the science that studies insects. It is a branch of zoology that deals with the study of insects and their relationships with other organisms, their environments, and human society. Entomologists study the biology, behavior, ecology, and evolution of insects, as well as their impact on agriculture, forestry, and other aspects of human life. Entomologists may also study the role of insects in the spread of diseases and their use in pest management. The term "entomology" comes from the Greek word "entomon," which means "insect."
Option A, behavior of human beings, is incorrect. Option C, the origin and history of technical and scientific terms, is incorrect. Option D, the formation of rocks, is incorrect.