Why Do We Get Rain ? : āĻāĻŽāĻŋ āĻāĻŋāĻ¯āĻŧ āĻŦā§°āĻˇā§āĻŖ āĻĒāĻžāĻāĻ ? / āĻŦā§°āĻˇā§āĻŖ āĻāĻŋāĻ¯āĻŧ āĻšāĻ¯āĻŧ ? : Science (Water Cycle / Weather)
Science (Water Cycle / Weather) :āĻŦāĻŋāĻā§āĻāĻžāĻ¨ (āĻāĻ˛āĻāĻā§āĻ° / āĻŦāĻ¤ā§° āĻŦāĻŋāĻā§āĻāĻžāĻ¨)
- The Sun heats water in rivers, lakes, and oceans. āĻ¸ā§ā§°ā§āĻ¯āĻ āĻ¨āĻĻā§, āĻšā§ā§°āĻĻ āĻā§°ā§ āĻ¸āĻŽā§āĻĻā§ā§°ā§° āĻĒāĻžāĻ¨ā§ āĻā§°āĻŽ āĻā§°ā§āĨ¤
- Water changes into water vapour. This process is called evaporation. : āĻĒāĻžāĻ¨ā§ āĻŦāĻžāĻˇā§āĻĒāĻ¤ āĻĒā§°āĻŋāĻŖāĻ¤ āĻšāĻ¯āĻŧāĨ¤ āĻāĻ āĻĒā§ā§°āĻā§ā§°āĻŋāĻ¯āĻŧāĻžāĻ evaporation (āĻŦāĻžāĻˇā§āĻĒā§āĻā§ąāĻ¨) āĻŦā§āĻ˛āĻž āĻšāĻ¯āĻŧāĨ¤
- The water vapour rises into the sky and cools. : āĻĒāĻžāĻ¨ā§ā§° āĻŦāĻžāĻˇā§āĻĒ āĻāĻāĻžāĻļāĻ˛ā§ āĻāĻ ā§ āĻā§°ā§ āĻ āĻžāĻŖā§āĻĄāĻž āĻšāĻ¯āĻŧāĨ¤
- It forms tiny water droplets. This process is called condensation. : āĻ āĻ¸ā§°ā§ āĻ¸ā§°ā§ āĻĒāĻžāĻ¨ā§ā§° āĻŦāĻŋāĻ¨ā§āĻĻā§ āĻ¸ā§āĻˇā§āĻāĻŋ āĻā§°ā§āĨ¤ āĻāĻ āĻĒā§ā§°āĻā§ā§°āĻŋāĻ¯āĻŧāĻžāĻ condensation (āĻāĻ¨ā§āĻā§ąāĻ¨) āĻŦā§āĻ˛āĻž āĻšāĻ¯āĻŧāĨ¤
- These droplets join together to form clouds. : āĻāĻ āĻĒāĻžāĻ¨ā§ā§° āĻŦāĻŋāĻ¨ā§āĻĻā§āĻŦā§ā§° āĻŽāĻŋāĻ˛āĻŋ āĻŽā§āĻ āĻāĻ āĻ¨ āĻā§°ā§āĨ¤
- When the clouds become heavy, water falls as rain (precipitation). :āĻ¯ā§āĻ¤āĻŋāĻ¯āĻŧāĻž āĻŽā§āĻāĻŦā§ā§° āĻāĻ§ā§ā§° āĻšāĻ¯āĻŧ, āĻ¤ā§āĻ¤āĻŋāĻ¯āĻŧāĻž āĻĒāĻžāĻ¨ā§ āĻŦā§°āĻˇā§āĻŖ āĻšāĻŋāĻāĻžāĻĒā§ āĻĒā§°ā§ (precipitation)āĨ¤
Key Point: Rain occurs because of evaporation and condensation in the water cycle. : āĻŦā§°āĻˇā§āĻŖ āĻāĻ˛āĻāĻā§āĻ°āĻ¤ āĻšā§ā§ąāĻž evaporation āĻā§°ā§ condensation ā§° āĻŦāĻžāĻŦā§ āĻšāĻ¯āĻŧāĨ¤
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MCQ
Q1. What is the main source of energy for rain formation ? : āĻŦā§°āĻˇā§āĻŖ āĻāĻ āĻ¨ā§° āĻŽā§āĻā§āĻ¯ āĻļāĻā§āĻ¤āĻŋā§° āĻā§āĻ¸ āĻāĻŋ ?
A) Moon | B) Sun | C) Wind | D) Soil
Ans: B) Sun
Explanation: The Sun heats water and starts evaporation. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻ¸ā§ā§°ā§āĻ¯āĻ āĻĒāĻžāĻ¨ā§ āĻā§°āĻŽ āĻā§°āĻŋ āĻŦāĻžāĻˇā§āĻĒā§āĻā§ąāĻ¨ āĻā§°āĻŽā§āĻ āĻā§°ā§āĨ¤
Q2. Water changing into vapour is called ? : āĻĒāĻžāĻ¨ā§ āĻŦāĻžāĻˇā§āĻĒāĻ˛ā§ āĻĒā§°āĻŋāĻŖāĻ¤ āĻšā§ā§ąāĻžāĻ āĻāĻŋ āĻā§ā§ąāĻž āĻšāĻ¯āĻŧ ?
A) Condensation | B) Evaporation | C) Freezing | D) Melting
Ans: B) Evaporation
Explanation: Heat from the Sun turns water into vapour. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻ¸ā§ā§°ā§āĻ¯ā§° āĻ¤āĻžāĻĒā§ āĻĒāĻžāĻ¨ā§ āĻŦāĻžāĻˇā§āĻĒāĻ¤ āĻĒā§°āĻŋāĻŖāĻ¤ āĻā§°ā§āĨ¤
Q3. Water vapour rises because it is ? : āĻĒāĻžāĻ¨ā§ā§° āĻŦāĻžāĻˇā§āĻĒ āĻāĻĒā§°āĻ˛ā§ āĻāĻ ā§ āĻāĻžā§°āĻŖ āĻ āĻā§āĻ¨ā§āĻā§ā§ąāĻž ?
A) Heavy | B) Cold | C) Light | D) Solid
Ans: C) Light
Explanation: Water vapour is lighter than air. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻĒāĻžāĻ¨ā§ā§° āĻŦāĻžāĻˇā§āĻĒ āĻŦāĻžāĻ¯āĻŧā§āĻ¤āĻā§ āĻšāĻžāĻ˛āĻāĻžāĨ¤
A) Heavy | B) Cold | C) Light | D) Solid
Ans: C) Light
Explanation: Water vapour is lighter than air. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻĒāĻžāĻ¨ā§ā§° āĻŦāĻžāĻˇā§āĻĒ āĻŦāĻžāĻ¯āĻŧā§āĻ¤āĻā§ āĻšāĻžāĻ˛āĻāĻžāĨ¤
Q4. Vapour cooling to form droplets is called ? : āĻŦāĻžāĻˇā§āĻĒ āĻ āĻžāĻŖā§āĻĄāĻž āĻšā§ āĻĒāĻžāĻ¨ā§ā§° āĻŦāĻŋāĻ¨ā§āĻĻā§ āĻāĻ āĻ¨ āĻā§°āĻžāĻ āĻāĻŋ āĻā§ā§ąāĻž āĻšāĻ¯āĻŧ ?
A) Condensation | B) Evaporation | C) Heating | D) Freezing
Ans: A) Condensation
Explanation: Vapour cools and changes into droplets. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŦāĻžāĻˇā§āĻĒ āĻ āĻžāĻŖā§āĻĄāĻž āĻšā§ āĻĒāĻžāĻ¨ā§ā§° āĻŦāĻŋāĻ¨ā§āĻĻā§ āĻšāĻ¯āĻŧāĨ¤
A) Condensation | B) Evaporation | C) Heating | D) Freezing
Ans: A) Condensation
Explanation: Vapour cools and changes into droplets. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŦāĻžāĻˇā§āĻĒ āĻ āĻžāĻŖā§āĻĄāĻž āĻšā§ āĻĒāĻžāĻ¨ā§ā§° āĻŦāĻŋāĻ¨ā§āĻĻā§ āĻšāĻ¯āĻŧāĨ¤
Q5. Tiny water droplets in the sky form ? : āĻāĻāĻžāĻļāĻ¤ āĻ¸ā§°ā§ āĻĒāĻžāĻ¨ā§ā§° āĻŦāĻŋāĻ¨ā§āĻĻā§āĻŦā§ā§°ā§ āĻāĻŋ āĻāĻ āĻ¨ āĻā§°ā§ ?
A) Wind | B) Clouds | C) Rainbows | D) Ice
Ans: B) Clouds
Explanation: Clouds are made of tiny water droplets. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŽā§āĻ āĻ¸ā§°ā§ āĻĒāĻžāĻ¨ā§ā§° āĻŦāĻŋāĻ¨ā§āĻĻā§ā§°ā§ āĻāĻ āĻŋāĻ¤āĨ¤
A) Wind | B) Clouds | C) Rainbows | D) Ice
Ans: B) Clouds
Explanation: Clouds are made of tiny water droplets. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŽā§āĻ āĻ¸ā§°ā§ āĻĒāĻžāĻ¨ā§ā§° āĻŦāĻŋāĻ¨ā§āĻĻā§ā§°ā§ āĻāĻ āĻŋāĻ¤āĨ¤
Q6. Rain falling from clouds is called ? : āĻŽā§āĻā§° āĻĒā§°āĻž āĻŦā§°āĻˇā§āĻŖ āĻĒā§°āĻžāĻ āĻāĻŋ āĻā§ā§ąāĻž āĻšāĻ¯āĻŧ ?
A) Evaporation | B) Condensation | C) Precipitation | D) Radiation
Ans: C) Precipitation
Explanation: Rain, snow, and hail are precipitation. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŦā§°āĻˇā§āĻŖ, āĻŦā§°āĻĢ āĻāĻĻāĻŋ precipitationāĨ¤
A) Evaporation | B) Condensation | C) Precipitation | D) Radiation
Ans: C) Precipitation
Explanation: Rain, snow, and hail are precipitation. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŦā§°āĻˇā§āĻŖ, āĻŦā§°āĻĢ āĻāĻĻāĻŋ precipitationāĨ¤
Q7. Which process starts the water cycle ? : āĻāĻ˛āĻāĻā§āĻ° āĻā§āĻ¨ āĻĒā§ā§°āĻā§ā§°āĻŋāĻ¯āĻŧāĻžāĻ āĻā§°āĻŽā§āĻ āĻā§°ā§ ?
A) Rain | B) Evaporation | C) Condensation | D) Snow
Ans: B) Evaporation
Explanation: Evaporation begins the water cycle. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŦāĻžāĻˇā§āĻĒā§āĻā§ąāĻ¨ā§ āĻāĻ˛āĻāĻā§āĻ° āĻā§°āĻŽā§āĻ āĻā§°ā§āĨ¤
A) Rain | B) Evaporation | C) Condensation | D) Snow
Ans: B) Evaporation
Explanation: Evaporation begins the water cycle. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŦāĻžāĻˇā§āĻĒā§āĻā§ąāĻ¨ā§ āĻāĻ˛āĻāĻā§āĻ° āĻā§°āĻŽā§āĻ āĻā§°ā§āĨ¤
Q8. Clouds become heavy due to ? : āĻŽā§āĻāĻŦā§ā§° āĻāĻ§ā§ā§° āĻšāĻ¯āĻŧ āĻāĻŋāĻšā§° āĻŦāĻžāĻŦā§ ?
A) Heat | B) Water droplets | C) Wind | D) Dust
Ans: B) Water droplets
Explanation: Droplets combine and grow heavier. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻĒāĻžāĻ¨ā§ā§° āĻŦāĻŋāĻ¨ā§āĻĻā§ āĻŽāĻŋāĻ˛āĻŋ āĻāĻ§ā§ā§° āĻšāĻ¯āĻŧāĨ¤
A) Heat | B) Water droplets | C) Wind | D) Dust
Ans: B) Water droplets
Explanation: Droplets combine and grow heavier. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻĒāĻžāĻ¨ā§ā§° āĻŦāĻŋāĻ¨ā§āĻĻā§ āĻŽāĻŋāĻ˛āĻŋ āĻāĻ§ā§ā§° āĻšāĻ¯āĻŧāĨ¤
Q9. Rain is part of which cycle ? : āĻŦā§°āĻˇā§āĻŖ āĻā§āĻ¨ āĻāĻā§āĻ°ā§° āĻ
āĻāĻļ ?
A) Carbon cycle | B) Water cycle | C) Nitrogen cycle | D) Rock cycle
Ans: B) Water cycle
Explanation: Rain is an important step in the water cycle. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŦā§°āĻˇā§āĻŖ āĻāĻ˛āĻāĻā§āĻ°ā§° āĻā§ā§°ā§āĻ¤ā§āĻŦāĻĒā§ā§°ā§āĻŖ āĻ§āĻžāĻĒāĨ¤
A) Carbon cycle | B) Water cycle | C) Nitrogen cycle | D) Rock cycle
Ans: B) Water cycle
Explanation: Rain is an important step in the water cycle. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŦā§°āĻˇā§āĻŖ āĻāĻ˛āĻāĻā§āĻ°ā§° āĻā§ā§°ā§āĻ¤ā§āĻŦāĻĒā§ā§°ā§āĻŖ āĻ§āĻžāĻĒāĨ¤
Q10. Which of these forms clouds ? āĻāĻāĻŦā§ā§°ā§° āĻāĻŋāĻ¤ā§°āĻ¤ āĻā§āĻ¨ā§ āĻŽā§āĻ āĻāĻ āĻ¨ āĻā§°ā§ ?
A) Water vapour | B) Sand | C) Smoke | D) Soil
Ans: A) Water vapour
Explanation: Vapour condenses to form clouds. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŦāĻžāĻˇā§āĻĒ āĻāĻ¨ā§āĻā§ąāĻ¨ āĻšā§ āĻŽā§āĻ āĻšāĻ¯āĻŧāĨ¤
A) Water vapour | B) Sand | C) Smoke | D) Soil
Ans: A) Water vapour
Explanation: Vapour condenses to form clouds. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŦāĻžāĻˇā§āĻĒ āĻāĻ¨ā§āĻā§ąāĻ¨ āĻšā§ āĻŽā§āĻ āĻšāĻ¯āĻŧāĨ¤
Q11. Rain occurs when clouds become ? : āĻŽā§āĻ āĻā§āĻ¨ā§āĻā§ā§ąāĻž āĻšāĻ˛ā§ āĻŦā§°āĻˇā§āĻŖ āĻšāĻ¯āĻŧ ?
A) Light | B) Cold | C) Heavy | D) Dry
Ans: C) Heavy
Explanation: Heavy droplets fall as rain. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻāĻ§ā§ā§° āĻŦāĻŋāĻ¨ā§āĻĻā§ āĻ¤āĻ˛āĻ˛ā§ āĻĒā§°ā§āĨ¤
A) Light | B) Cold | C) Heavy | D) Dry
Ans: C) Heavy
Explanation: Heavy droplets fall as rain. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻāĻ§ā§ā§° āĻŦāĻŋāĻ¨ā§āĻĻā§ āĻ¤āĻ˛āĻ˛ā§ āĻĒā§°ā§āĨ¤
Q12. Which of these is NOT part of rain formation ? āĻāĻāĻŦā§ā§°ā§° āĻāĻŋāĻ¤ā§°āĻ¤ āĻā§āĻ¨āĻā§ āĻŦā§°āĻˇā§āĻŖ āĻāĻ āĻ¨ā§° āĻ
āĻāĻļ āĻ¨āĻšāĻ¯āĻŧ ?
A) Evaporation | B) Condensation | C) Precipitation | D) Magnetism
Ans: D) Magnetism
Explanation: Magnetism is unrelated to rain. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: Magnetism ā§° āĻ¸ā§āĻ¤ā§ āĻŦā§°āĻˇā§āĻŖā§° āĻ¸āĻŽā§āĻĒā§°ā§āĻ āĻ¨āĻžāĻāĨ¤
A) Evaporation | B) Condensation | C) Precipitation | D) Magnetism
Ans: D) Magnetism
Explanation: Magnetism is unrelated to rain. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: Magnetism ā§° āĻ¸ā§āĻ¤ā§ āĻŦā§°āĻˇā§āĻŖā§° āĻ¸āĻŽā§āĻĒā§°ā§āĻ āĻ¨āĻžāĻāĨ¤
Q13. The cooling of vapour mainly happens in the ? āĻŦāĻžāĻˇā§āĻĒ āĻ āĻžāĻŖā§āĻĄāĻž āĻšā§ā§ąāĻž āĻŽā§āĻ˛āĻ¤ āĻ’āĻ¤ āĻšāĻ¯āĻŧ ?
A) Ocean | B) Sky | C) Soil | D) River
Ans: B) Sky
Explanation: Vapour cools in the atmosphere. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŦāĻžāĻ¯āĻŧā§āĻŽāĻŖā§āĻĄāĻ˛āĻ¤ āĻŦāĻžāĻˇā§āĻĒ āĻ āĻžāĻŖā§āĻĄāĻž āĻšāĻ¯āĻŧāĨ¤
A) Ocean | B) Sky | C) Soil | D) River
Ans: B) Sky
Explanation: Vapour cools in the atmosphere. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŦāĻžāĻ¯āĻŧā§āĻŽāĻŖā§āĻĄāĻ˛āĻ¤ āĻŦāĻžāĻˇā§āĻĒ āĻ āĻžāĻŖā§āĻĄāĻž āĻšāĻ¯āĻŧāĨ¤
Q14. The main cause of evaporation is ? : āĻŦāĻžāĻˇā§āĻĒā§āĻā§ąāĻ¨ā§° āĻŽā§āĻā§āĻ¯ āĻāĻžā§°āĻŖ āĻāĻŋ ?
A) Wind | B) Heat | C) Dust | D) Gravity
Ans: B) Heat
Explanation: Heat converts water into vapour. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻ¤āĻžāĻĒā§ āĻĒāĻžāĻ¨ā§ āĻŦāĻžāĻˇā§āĻĒāĻ¤ āĻĒā§°āĻŋāĻŖāĻ¤ āĻā§°ā§āĨ¤
A) Wind | B) Heat | C) Dust | D) Gravity
Ans: B) Heat
Explanation: Heat converts water into vapour. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻ¤āĻžāĻĒā§ āĻĒāĻžāĻ¨ā§ āĻŦāĻžāĻˇā§āĻĒāĻ¤ āĻĒā§°āĻŋāĻŖāĻ¤ āĻā§°ā§āĨ¤
Q15. Rainwater mainly comes from ? : āĻŦā§°āĻˇā§āĻŖā§° āĻĒāĻžāĻ¨ā§ āĻŽā§āĻ˛āĻ¤ āĻ’ā§° āĻĒā§°āĻž āĻāĻšā§ ?
A) Ground | B) Clouds | C) Plants | D) Air
Ans: B) Clouds
Explanation: Clouds release water as rain. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŽā§āĻā§ āĻĒāĻžāĻ¨ā§ āĻŦā§°āĻˇā§āĻŖ āĻšāĻŋāĻāĻžāĻĒā§ āĻĻāĻŋāĻ¯āĻŧā§āĨ¤
A) Ground | B) Clouds | C) Plants | D) Air
Ans: B) Clouds
Explanation: Clouds release water as rain. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŽā§āĻā§ āĻĒāĻžāĻ¨ā§ āĻŦā§°āĻˇā§āĻŖ āĻšāĻŋāĻāĻžāĻĒā§ āĻĻāĻŋāĻ¯āĻŧā§āĨ¤
Q16. Which layer of Earth holds clouds ? : āĻĒā§āĻĨāĻŋā§ąā§ā§° āĻā§āĻ¨ āĻ¸ā§āĻ¤ā§°āĻ¤ āĻŽā§āĻ āĻĨāĻžāĻā§ ?
A) Lithosphere | B) Atmosphere | C) Hydrosphere | D) Biosphere
Ans: B) Atmosphere
Explanation: Clouds form in the atmosphere. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŽā§āĻ āĻŦāĻžāĻ¯āĻŧā§āĻŽāĻŖā§āĻĄāĻ˛āĻ¤ āĻāĻ āĻ¨ āĻšāĻ¯āĻŧāĨ¤
A) Lithosphere | B) Atmosphere | C) Hydrosphere | D) Biosphere
Ans: B) Atmosphere
Explanation: Clouds form in the atmosphere. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŽā§āĻ āĻŦāĻžāĻ¯āĻŧā§āĻŽāĻŖā§āĻĄāĻ˛āĻ¤ āĻāĻ āĻ¨ āĻšāĻ¯āĻŧāĨ¤
Q17. The joining of water droplets forms ? : āĻĒāĻžāĻ¨ā§ā§° āĻŦāĻŋāĻ¨ā§āĻĻā§ āĻŽāĻŋāĻ˛āĻŋāĻ˛ā§ āĻāĻŋ āĻāĻ āĻ¨ āĻšāĻ¯āĻŧ ?
A) Rivers | B) Clouds | C) Sand | D) Air
Ans: B) Clouds
Explanation: Droplets combine to form clouds. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŦāĻŋāĻ¨ā§āĻĻā§āĻŦā§ā§° āĻŽāĻŋāĻ˛āĻŋ āĻŽā§āĻ āĻšāĻ¯āĻŧāĨ¤
A) Rivers | B) Clouds | C) Sand | D) Air
Ans: B) Clouds
Explanation: Droplets combine to form clouds. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŦāĻŋāĻ¨ā§āĻĻā§āĻŦā§ā§° āĻŽāĻŋāĻ˛āĻŋ āĻŽā§āĻ āĻšāĻ¯āĻŧāĨ¤
Q18. Which process turns liquid water into vapour ? : āĻā§āĻ¨ āĻĒā§ā§°āĻā§ā§°āĻŋāĻ¯āĻŧāĻžāĻ āĻĒāĻžāĻ¨ā§āĻ āĻŦāĻžāĻˇā§āĻĒāĻ˛ā§ āĻĒā§°āĻŋāĻŖāĻ¤ āĻā§°ā§ ?
A) Freezing | B) Evaporation | C) Condensation | D) Cooling
Ans: B) Evaporation
Explanation: Heat causes evaporation. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻ¤āĻžāĻĒā§ āĻŦāĻžāĻˇā§āĻĒā§āĻā§ąāĻ¨ āĻāĻāĻžāĻ¯āĻŧāĨ¤
A) Freezing | B) Evaporation | C) Condensation | D) Cooling
Ans: B) Evaporation
Explanation: Heat causes evaporation. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻ¤āĻžāĻĒā§ āĻŦāĻžāĻˇā§āĻĒā§āĻā§ąāĻ¨ āĻāĻāĻžāĻ¯āĻŧāĨ¤
Q19. Rainfall helps in ? : āĻŦā§°āĻˇā§āĻŖā§ āĻ’āĻ¤ āĻ¸āĻšāĻžāĻ¯āĻŧ āĻā§°ā§ ?
A) Water supply | B) Pollution | C) Dry air | D) Heat
Ans: A) Water supply
Explanation: Rain provides fresh water. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŦā§°āĻˇā§āĻŖā§ āĻŽāĻŋāĻ āĻž āĻĒāĻžāĻ¨ā§ āĻ¯ā§āĻāĻžāĻ¨ āĻ§ā§°ā§āĨ¤
A) Water supply | B) Pollution | C) Dry air | D) Heat
Ans: A) Water supply
Explanation: Rain provides fresh water. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŦā§°āĻˇā§āĻŖā§ āĻŽāĻŋāĻ āĻž āĻĒāĻžāĻ¨ā§ āĻ¯ā§āĻāĻžāĻ¨ āĻ§ā§°ā§āĨ¤
Q20. The key reason for rain is ? : āĻŦā§°āĻˇā§āĻŖā§° āĻŽā§āĻā§āĻ¯ āĻāĻžā§°āĻŖ āĻāĻŋ ?
A) Wind | B) Evaporation and condensation | C) Soil | D) Fire
Ans: B) Evaporation and condensation
Explanation: These processes form clouds and rain. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻāĻ āĻĒā§ā§°āĻā§ā§°āĻŋāĻ¯āĻŧāĻžāĻ āĻŽā§āĻ āĻā§°ā§ āĻŦā§°āĻˇā§āĻŖ āĻāĻ āĻ¨ āĻā§°ā§āĨ¤
A) Wind | B) Evaporation and condensation | C) Soil | D) Fire
Ans: B) Evaporation and condensation
Explanation: These processes form clouds and rain. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻāĻ āĻĒā§ā§°āĻā§ā§°āĻŋāĻ¯āĻŧāĻžāĻ āĻŽā§āĻ āĻā§°ā§ āĻŦā§°āĻˇā§āĻŖ āĻāĻ āĻ¨ āĻā§°ā§āĨ¤