Question : Which of the following pairings is incorrect?

Option 1: Hygrometer- water vapour content of the atmosphere

Option 2: Lactometer - Specific gravity of liquids

Option 3: Anemometer- Speed of the wind

Option 4: Seismograph- Earthquakes

Question : The Beaufort scale is used to measure:

Option 1: Atmospheric pressure

Option 2: Altitudes of mountains

Option 3: Wind velocity

Option 4: Intensity of earthquakes

Question : The purest form of water is

Option 1: Tap water

Option 2: Rain water

Option 3: Ground water

Option 4: Distilled water

Question : Iron rusts quickly in

Option 1: Rain water

Option 2: Sea water

Option 3: Distilled water

Option 4: River water

Question : Precipitation in the form of a mixture of rain and snow is called

Option 1: Drizzle

Option 2: Hail

Option 3: Sleet

Option 4: Snow