The question asks for the term that describes the art and science of soil cultivation for rearing crops. We need to identify the correct agricultural practice from the given options.
Correct Option: D) Agriculture is the comprehensive term for the art and science of cultivating soil, growing crops, and raising livestock.
The question asks to identify the specific term for the cultivation of silkworms. This requires knowledge of common terminology related to agricultural practices and animal husbandry.
Correct Option: C) Sericulture — Sericulture is the rearing of silkworms for the production of raw silk. This practice has been carried out for thousands of years, primarily in Asia, to obtain silk fibers from the cocoons spun by silkworms.
The question asks to identify which of the given crops (Cowpea, Green gram, Pigeon pea) are used as a pulse, fodder, and green manure. This requires knowledge of the multiple uses of these leguminous crops.
Correct Option: D) 1, 2 and 3
This question asks to identify the type of technological progress represented by replacing wooden ploughs with steel ploughs. We need to understand the definitions of different types of technological progress in economics, specifically how they affect the productivity of labor and capital.
Correct Option: B) capital-augmenting technological progress
The substitution of steel for wooden ploughs means that the capital (the plough) itself has become more productive and efficient. A steel plough can do more work or better work than a wooden plough for the same amount of effort from the farmer (labor). This directly enhances the productivity of the capital good.
The question asks for the specific term used to describe the breeding of fish in controlled environments like tanks and ponds. This is a direct recall question related to different branches of agriculture and animal husbandry.
Correct Option: B) Pisciculture is the term given to the breeding, rearing, and transplantation of fish by artificial means, often in specially constructed tanks and ponds. It is a form of aquaculture.
The question asks for the specific term used to describe the cultivation of grapes. This requires knowledge of various agricultural practices and their specific names.
Correct Option: A) Viticulture is the science, production, and study of grapes. It deals with the series of events that occur in the vineyard.