Science Practice Quiz 219

Q1.What is the boiling point of water on the Celsius scale?

A. 90°C. B. 100°C. C. 110°C. D. 212°C.

Q2.What was the primary cause of salinisation that turned large tracts of agricultural land infertile during the 1999 Odisha supercyclone?

A. Heavy rainfall B. River flooding C. Tidal surge D. Groundwater contamination

Q3.What is the term for moisture in the air at any given time?

A. Precipitation B. Evaporation C. Humidity D. Condensation

Q4.How does warmer air affect its capacity to hold water vapour?

A. Its capacity decreases, making it less humid. B. Its capacity increases, making it more humid. C. Its capacity remains unchanged. D. Its capacity fluctuates unpredictably.

Q5.What process causes the formation of water droplets that constitute clouds?

A. Evaporation of water vapour B. Heating of water vapour C. Condensation of water vapour D. Sublimation of water vapour

Q6.Precipitation that comes down to the earth in liquid form is known as what?

A. Snow B. Hail C. Sleet D. Rain

Q7.From which source does most of the groundwater come, according to the provided text?

A. River water B. Lake water C. Rainwater D. Ocean water

Q8.What is a consequence of cutting trees on hillsides?

A. Increased groundwater recharge B. Reduced soil erosion C. Flooding of low-lying areas D. Enhanced cloud formation

Q9.Which specific type of forest vanished between Paradeep and Konark due to the 1999 Odisha supercyclone?

A. Sal forests B. Teak plantations C. Bamboo plantations D. Mangrove forests

Q10.Which gas is referred to as the 'life-giving gas' in the context of the atmosphere?

A. Nitrogen B. Carbon Dioxide C. Oxygen D. Ozone

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Science Practice Quiz 219