Question : Why boiling point of water decrease at high altitudes?

Option 1: Because of the high temperature

Option 2: Because of low atmospheric pressure

Option 3: Because of low temperature

Option 4: Because of high atmospheric pressure

Question : The temperature of boiling water in a steam engine may be high because:

Option 1: there are dissolved substances in water

Option 2: there is low pressure inside the boiler

Option 3: there is high pressure inside the boiler

Option 4: the fire is at very high temperature

Question : Which of the following pressure belt is known as the horse latitude?

Option 1: Sub - Polar Low Pressure

Option 2: Equatorial Low Pressure

Option 3: Sub - Tropical High Pressure

Option 4: High Pressure

Question : Which of the following statements is correct regarding air pressure?

Option 1: High pressure is associated with cloudy skies and wet weather.

Option 2: Low pressure is associated with clear and sunny skies.

Option 3: The air always moves from high-pressure areas to low-pressure areas.

Option 4: The air pressure is lowest at sea level and increases with height.

Question : Refrigerators keep food unspoiled because

Option 1: at its low temperature bacteria and moulds are inactive

Option 2: at its low temperature, the germs are killed

Option 3: at its low temperature, the germs are frozen

Option 4: it sterilizes the food