The therapeutic use of sunlight is called

Answer: Option C

Explanation:

The study of human races is called Ethnology.

The study of animal behaviour is called Ethology.

The study of origin and history of words is called Etymology.

Answer: Option B

Explanation:

Exercises developing or displaying physical agility and coordination is called Gymnastics.

The science that deals with the earth's physical structure and substance, its history, and the processes that act on it is called Geology.

The study of the microscopic structure of tissues is called Histology.

Answer: Option B

Explanation:

The study of visual imagery and its symbolism and interpretation is called Iconology.

The practice of compiling dictionaries Lexicography

The study or collection of coins, paper currency, and medals is called Numismatics.

Answer: Option B

Explanation:

he collection and study of postage stamps is called Philately.

The branch of knowledge that deals with the structure, historical development, and relationships of a language or languages is called Philology.

The study and classification of speech sounds is called Phonetics.

Answer: Option C

Explanation:

The use or study of images or symbols in visual arts is called Iconography.

Literature dealing with saints is called Hagiology.

The treatment of illness through the use of water, either internally or through external means such as steam baths is called Hydropathy.