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Browse complete papers________ is the technique used for separating colours.
Chromatography
Sublimation
Filtration
Evaporation
Correct answer
Chromatography
Types of soil does NOT depend upon ______.
the amount of humus
oxygen present in the air
the average size of soil particle
the presence of microscopic organisms
Correct answer
the amount of humus
Article _______of the constitution of India recognises the right to safe drinking water.
420
108
35
21
Correct answer
420
Blackening of silver articles is an example of _______.
thermal decomposition
corrosion
rancidity
combustion
Correct answer
thermal decomposition
We can maintain the fertility of soil by:
leaving it uncultivated for two or more seasons
adding more fertilizers
intensive cropping
planting more trees
Correct answer
leaving it uncultivated for two or more seasons
Identify the hormone responsible for wilting of leaves.
Abscisic acid
Gibberellins
Cytokinins
Auxin
Correct answer
Abscisic acid
The ancient local irrigation system 'kulhs' is practiced in _______.
Rajasthan
Kerala
Himachal Pradesh
Madhya Pradesh
Correct answer
Rajasthan
Which of the following is NOT a natural ecosystem?
Lakes
Aquariums
Ponds
Forests
Correct answer
Lakes
Common bulbs are filled with _________.
Mercury
Argon or Nitrogen gases
Chloromethane
Vacuum
Correct answer
Mercury
_______ are a connective tissue which connect two bones to each other.
Tendons
Muscles
Cartilages
Ligaments
Correct answer
Tendons