Question : The sky appears blue because of

Option 1: Atmospheric water vapour

Option 2: Scattering of light

Option 3: Reflection on sea water

Option 4: Emision of blue wavelength by the sun

Question : When a strong beam of light is passed through a colloidal solution, the light will 

Option 1: be scattered

Option 2: pass unchanged

Option 3: be absorbed

Option 4: be reflected

Question : The deepest ocean of the world is 

Option 1: Atlantic Ocean

Option 2: Arctic Ocean

Option 3: Indian Ocean

Option 4: Pacific Ocean

Question : Which of the given responses would be a meaningful order of the following?

1.Rivulet    2.Ocean    3.Tributary     4.River     5.Sea   6.Rain

Option 1: 6 5 3 1 2 4

Option 2: 6 4 1 3 5 2

Option 3: 6 1 3 4 5 2

Option 4: 5 6 1 3 2 4

Question : Why does a black board appears black in colour?

Option 1: It reflects black colour

Option 2: It absorbs black colour

Option 3: It reflects all colours

Option 4: It absorbs all the colours