The art of elegant speech or writing is called

Answer: Option A

Explanation:

The study of effect of environment on workers is called Ergonomy.

The science of improving a human population by controlled breeding to increase the occurrence of desirable heritable characteristics is called Eugenics.

The study of heredity and the variation of inherited characteristics is called Genetics.

Answer: Option A

Explanation:

The study of sound is called Acoustics.
The science or art of flight is called Aeronautics.
The philosophy of fine arts Aesthetics.
The science of soil management is called Agronomy.

Answer: Option D

Explanation:

The study of ancient writing systems and the deciphering and dating of historical manuscripts is called Paleography.

A person's facial features or expression, esp. when regarded as indicative of character or ethnic origin is called Physiognomy.

The production of silk and the rearing of silkworms for this purpose is called Sericulture.

Answer: Option D

Explanation:

The study of finger prints for the purpose of identification is called Dactylography.

The branch of biology concerned with the structure and function of plant and animal cells is called Cytology.

The branch of physics dealing with the production and effects of very low temperatures is called Cryogenics.

Answer: Option B

Explanation:

The study of relation of animals and plants to their surroundings, animate and inanimate is called Ecology.

The study of insects is called Entomology.

The study of inscriptions is called Epigraphy.