Multiple choice questions (Saline Agriculture)

1.       Sampling of soils in which a no. of samples are bulked together is called

a) Grid sampling

b) Random sampling

c) Stratified

d) Composite sampling

2.       Measure of conductance of a substance to electrical current is

a) Resistance

b) Conductance

c) Resistivity

d) Electrical conductivity

3.       Repulsion of  like charges  is known as

a) Electrostatic repulsion

b) Thermostatic repulsion

c) Hydrostatic repulsion

d) Electrical repulsion

4.       A state in which free standing water occurs on the soil surface is termed as

a) Field capacity

b) Permanent wilting point

c) Available water

d) Flooding

5.       Gypsum is also called

a) Hydrated calcium sulphate

b) Pyrite

c) Brucite

d) Anhydrous mica

6.       ____________  plants are capable of growth at high salt concentrations

a) Glycophytes

b) Hydrophytes

c) Halophytes

d) Non-halophytes

7.       _______________  is an example of halophyte plants

a) Maize

b) Salt bush

c) Rice

d) Wheat

8.       Volume of the soil occupied by the plant roots is called

a)       Bulk soil

b)      Root zone

c)       Canopy

d)       Hydrosphere

9.       Conversion of  inorganic form into organic form is called

a)       Immobilization

b)       Mineralization

c)       Decomposition

d)       Degradation

10.    ________of  organic form into inorganic form is called mineralization

a)       Inversion

b)      Conversion

c)       Decomposition

d)       Degradation

1, 2, 3, 4, 5, 6, 7,

Answer Key 

1	d
2	d
3	a
4	d
5	a
6	c
7	b
8	b
9	a
10	b