1971. One of the following moves from specific to general :

A. Deductive reasoning
B. Inductive theory *
C. Productive theory
D. Tentative theory

1972. Hydroponic technique is used to test the essential nature of which of the followings :

A. Nutrients *
B. light
C. Carbon dioxide
D. Soil

1973. One of the following methods is used to protect food from spoilage and help in its use and transport over long distance without damaging its quality is :

A. Immunization
B. Gene therapy
C. Biological control
D. Pasteurization *

1974. Which one is a macromolecule ?

A. Polysaccharide
B. Protein
C. Hemoglobin
D. ATP *

1975. In animals coordination is achieved by means of :

A. Respiratory system
B. Nervous system
C. Endocrine system
D. Both B and C *

1976. Fibre of great commercial importance derived from epidermis is :

A. Flax
B. Hemp
C. Coir
D. Cotton *

1977. A milk like preparation can be made from the seeds of :

A. Gram
B. Grapes
C. Soyabean *
D. Barley

1978. Coir of commerce comes from which part of coconut ?

A. Epicarp
B. Mesocarp *
C. Seed Coat
D. Endocarp

1979. One of the following is a source of rubber :

A. Heave brasiliensis *
B. Tectona grandis
C. Cedrus depdara
D. Michelia champaca

1980. Which of the most important source of food and fodder ?

A. Algae
B. Fungi
C. Lichen
D. Cereal *