Chapter 14: Water
Choose the correct answer,
Q1. Boiling point of water is
(a) 100°C
(c) 101°C
(b) 99°C
(d) 102°C
Answer
Answer: (a) 100°C
Q2. Plants release large amount of water vapours into the atmosphere by the process called
(a) evaporation
(b) condensation
(c) precipitation
(d) transpiration
Answer
Answer: (d) transpiration
Q3. Which is not a part of water cycle?
(a) Cloud formation
(b) Rain
(c) Drinking by animals
(d) Sun
Answer
Answer: (c) Drinking by animals
Q4. Which is a result of condensation of water vapours?
(a) Rain
(b) Snowfall
(c) Hail
(d) Tiny water droplets
Answer
Answer: (d) Tiny water droplets
Q5. Which one is the purest form of water?
(a) River water
(b) Groundwater
(c) Rainwater
(d) Ocean water
Answer
Answer: (c) Rainwater
Q6. Circulation of water between ocean and land is known as
(a) water cycle
(b) rain cycle
(c) water management
(d) water harvesting
Answer
Answer: (a) water cycle
Q7. The percentage of water in potato is
(a) 88
(b) 75
(c) 90
(d) 95
Answer
Answer: (b) 75
Q8. Out of these, which is not a source of surface water?
(a) rain water
(b) river and lake water
(c) Spring water
(d) sea water
Answer
Answer: (c) Spring water
Q9. Which one is a process in which water changes into vapours in atmosphere?
(a) Evaporation
(b) transpiration
(c) Precipitation
(d) condensation
Answer
Answer: (a) Evaporation
Q10. Potable water is
(a) ocean water
(b) groundwater at selected places
(c) river water
(d) ponds water
Answer
Answer: (b) groundwater at selected places