What If All Water Disappeared from Earth ? āϝāĻĻāĻŋ āĻĒā§āĻĨāĻŋā§ąā§ā§° āϏāĻāϞ⧠āĻĒāĻžāύ⧠āύāĻžāĻ āĻšā§ āϝāĻžāϝāĻŧ āϤā§āύā§āϤ⧠āĻāĻŋ āĻšâāĻŦ?
1. Dry Earth (āĻļā§āĻāĻžāύ āĻĒā§āĻĨāĻŋā§ąā§)
- Earth would become completely dry : āĻĒā§āĻĨāĻŋā§ąā§ āϏāĻŽā§āĻĒā§ā§°ā§āĻŖ āĻļā§āĻāĻžāύ āĻšā§ āĻĒā§°āĻŋāĻŦ
- No water anywhere on the planet : āĻĒā§āĻĨāĻŋā§ąā§āϤ āĻ’āϤ⧠āĻĒāĻžāύ⧠āύāĻžāĻĨāĻžāĻāĻŋāĻŦ
2. Empty Rivers & Lakes (āύāĻĻā§ āĻā§°ā§ āĻšā§ā§°āĻĻ āĻļā§āĻāĻžāĻ āϝāĻžāĻŦ)
- Rivers, lakes, and oceans would disappear : āύāĻĻā§, āĻšā§ā§°āĻĻ āĻā§°ā§ āϏāĻžāĻā§° āύāĻžāĻ āĻšā§ āϝāĻžāĻŦ
- No water cycle (no evaporation, no rain) : āĻĒāĻžāύ⧠āĻāĻā§ā§° āĻŦāύā§āϧ āĻšā§ āϝāĻžāĻŦ (āĻŦā§°āώā§āĻŖ āύāĻžāĻĨāĻžāĻāĻŋāĻŦ)
3. Plants & Animals Affected (āĻā§ā§ąāĻāύā§āϤ⧠āĻā§āώāϤāĻŋāĻā§ā§°āϏā§āϤ)
- All living things need water : āϏāĻāϞ⧠āĻā§ā§ąā§° āĻŦāĻžāĻŦā§ āĻĒāĻžāύ⧠āĻĒā§ā§°āϝāĻŧā§āĻāύ
- Plants, animals, and humans cannot survive : āĻāĻ-āĻāĻāύāĻŋ, āĻāύā§āϤ⧠āĻā§°ā§ āĻŽāĻžāύā§āĻš āĻŦāĻžāĻāĻŋ āĻĨāĻžāĻāĻŋāĻŦ āύā§ā§ąāĻžā§°āĻŋāĻŦ
4. Atmosphere Changes (āĻŦāĻžāϝāĻŧā§āĻŽāĻŖā§āĻĄāϞ āϏāϞāύāĻŋ āĻš’āĻŦ)
- No clouds will form : āĻŽā§āĻ āϏā§āώā§āĻāĻŋ āύāĻš’āĻŦ
- Temperature will increase (more heat) : āϤāĻžāĻĒāĻŽāĻžāϤā§āϰāĻž āĻŦāĻžāĻĸāĻŧāĻŋāĻŦ (āĻ āϧāĻŋāĻ āĻā§°āĻŽ āĻš’āĻŦ)
Summary
If all water disappeared : āϝāĻĻāĻŋ āϏāĻāϞ⧠āĻĒāĻžāύ⧠āύāĻžāĻ āĻšā§ āϝāĻžāϝāĻŧ -
- Earth becomes dry : āĻĒā§āĻĨāĻŋā§ąā§ āĻļā§āĻāĻžāύ āĻšā§ āĻĒā§°ā§
- No rivers or oceans : āύāĻĻā§ āĻā§°ā§ āϏāĻžāĻā§° āύāĻžāĻ āĻšāϝāĻŧ
- Life cannot survive : āĻā§ā§ąāύ āϏāĻŽā§āĻā§ą āύāĻšāϝāĻŧ
- Climate becomes extreme : āĻŦāϤ⧰ āĻ āϤāĻŋāĻļāϝāĻŧ āĻšā§ āĻĒā§°ā§
Exam Tip: Write 4 points + short conclusion = Full marks
MCQs : Exam Style
Q1. What would happen if all water disappeared from Earth ? āϝāĻĻāĻŋ āĻĒā§āĻĨāĻŋā§ąā§ā§° āϏāĻāϞ⧠āĻĒāĻžāύ⧠āύāĻžāĻ āĻšā§ āϝāĻžāϝāĻŧ āϤā§āύā§āϤ⧠āĻāĻŋ āĻš’āĻŦ ?
(a) Earth becomes green | (b) Earth becomes dry | (c) More rain | (d) Oceans increase
Ans: (b) Earth becomes dry
Explanation: Without water, Earth becomes completely dry. āĻŦā§āϝāĻžāĻā§āϝāĻž: āĻĒāĻžāύ⧠āύāĻžāĻĨāĻžāĻāĻŋāϞ⧠āĻĒā§āĻĨāĻŋā§ąā§ āϏāĻŽā§āĻĒā§ā§°ā§āĻŖ āĻļā§āĻāĻžāύ āĻšā§ āĻĒā§°ā§āĨ¤
Q2. What will happen to rivers and lakes ? āύāĻĻā§ āĻā§°ā§ āĻšā§ā§°āĻĻā§° āĻāĻŋ āĻš’āĻŦ ?
(a) Increase | (b) Stay same | (c) Disappear | (d) Overflow
Ans: (c) Disappear
Explanation: Rivers and lakes depend on water. āĻŦā§āϝāĻžāĻā§āϝāĻž: āύāĻĻā§ āĻā§°ā§ āĻšā§ā§°āĻĻ āĻĒāĻžāύā§ā§° āĻāĻĒā§°āϤ āύāĻŋā§°ā§āĻā§° āĻā§°ā§āĨ¤
Q3. Why can life not survive without water ? āĻĒāĻžāύ⧠āύāĻžāĻĨāĻžāĻāĻŋāϞ⧠āĻā§ā§ąāύ āĻāĻŋāϝāĻŧ āϏāĻŽā§āĻā§ą āύāĻšāϝāĻŧ ?
(a) No oxygen | (b) No sunlight | (c) Water is essential for life | (d) No soil
Ans: (c) Water is essential for life
Explanation: All living organisms need water. āĻŦā§āϝāĻžāĻā§āϝāĻž: āϏāĻāϞ⧠āĻā§ā§ąā§° āĻŦāĻžāĻŦā§ āĻĒāĻžāύ⧠āĻ
āϤā§āϝāĻžā§ąāĻļā§āϝāĻāĨ¤
Q4. What happens to the water cycle ? āĻĒāĻžāύ⧠āĻāĻā§ā§°ā§° āĻāĻŋ āĻš’āĻŦ ?
(a) Increases | (b) Stops completely | (c) Doubles | (d) Improves
Ans: (b) Stops completely
Explanation: No water → no evaporation → no rainfall. āĻŦā§āϝāĻžāĻā§āϝāĻž: āĻĒāĻžāύ⧠āύāĻžāĻĨāĻžāĻāĻŋāϞ⧠āĻŦāĻžāώā§āĻĒā§āĻā§ąāύ āĻā§°ā§ āĻŦā§°āώā§āĻŖ āύāĻžāĻĨāĻžāĻā§āĨ¤
Q5. Without water, the atmosphere will: āĻĒāĻžāύ⧠āύāĻžāĻĨāĻžāĻāĻŋāϞ⧠āĻŦāĻžāϝāĻŧā§āĻŽāĻŖā§āĻĄāϞ -
(a) Cool down | (b) Stay same | (c) Become hotter | (d) Freeze
Ans: (c) Become hotter
Explanation: Water helps control temperature. āĻŦā§āϝāĻžāĻā§āϝāĻž: āĻĒāĻžāύā§āϝāĻŧā§ āϤāĻžāĻĒāĻŽāĻžāϤā§āϰāĻž āύāĻŋāϝāĻŧāύā§āϤā§ā§°āĻŖ āĻā§°ā§āĨ¤
Short Note :Class 9 Answer
What If All Water Disappeared from Earth ?
If all water disappeared from Earth, the planet would become completely dry. Rivers, lakes, and oceans would vanish, and the water cycle would stop. Since all living organisms depend on water, plants, animals, and humans would not survive. The atmosphere would change, with no clouds and rising temperatures, making the climate extreme. Thus, life on Earth would become impossible.
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Exam Tip: Write 4 points + conclusion = Full marks