Chapter 8: Air and Water – MCQ Questions (1–35)
(Questions only | Options below each question)
1. What surrounds the Earth?
पृथ्वी को चारों ओर से क्या घेरता है?
A. Water
B. Soil
C. Air
D. Fire
2. Air is a mixture of ______.
वायु किसका मिश्रण है?
A. Liquids
B. Solids
C. Rocks
D. Gases
3. The layer of air around the Earth is called ______.
पृथ्वी के चारों ओर वायु की परत को क्या कहते हैं?
A. Hydrosphere
B. Biosphere
C. Atmosphere
D. Lithosphere
4. How many layers does the atmosphere have?
वायुमंडल की कितनी परतें होती हैं?
A. 3
B. 4
C. 5
D. 6
5. Which is the lowest layer of the atmosphere?
वायुमंडल की सबसे निचली परत कौन-सी है?
A. Mesosphere
B. Troposphere
C. Thermosphere
D. Exosphere
6. Weather changes take place in which layer?
मौसम परिवर्तन किस परत में होते हैं?
A. Stratosphere
B. Mesosphere
C. Troposphere
D. Exosphere
7. Aircraft fly in which layer?
हवाई जहाज़ किस परत में उड़ते हैं?
A. Troposphere
B. Stratosphere
C. Mesosphere
D. Exosphere
8. The ozone layer is present in which layer?
ओज़ोन परत किस परत में पाई जाती है?
A. Troposphere
B. Mesosphere
C. Stratosphere
D. Thermosphere
9. Which is the outermost layer of the atmosphere?
वायुमंडल की सबसे बाहरी परत कौन-सी है?
A. Thermosphere
B. Mesosphere
C. Troposphere
D. Exosphere
10. Space shuttles orbit in which layer?
अंतरिक्ष यान किस परत में परिक्रमा करते हैं?
A. Mesosphere
B. Thermosphere
C. Stratosphere
D. Troposphere
11. Air is necessary for ______.
वायु किसके लिए आवश्यक है?
A. Swimming
B. Breathing
C. Reading
D. Sleeping
12. Which gas is present in the largest amount in air?
वायु में सबसे अधिक कौन-सी गैस होती है?
A. Oxygen
B. Carbon dioxide
C. Nitrogen
D. Argon
13. Nitrogen forms about ______ of air.
वायु में नाइट्रोजन लगभग कितना प्रतिशत होती है?
A. 21%
B. 50%
C. 78%
D. 90%
14. Oxygen forms about ______ of air.
वायु में ऑक्सीजन लगभग कितना प्रतिशत होती है?
A. 10%
B. 21%
C. 50%
D. 78%
15. Oxygen helps in ______.
ऑक्सीजन किसमें सहायता करती है?
A. Burning
B. Sleeping
C. Floating
D. Walking
16. Plants use ______ for photosynthesis.
पौधे प्रकाश संश्लेषण के लिए किस गैस का उपयोग करते हैं?
A. Oxygen
B. Nitrogen
C. Carbon dioxide
D. Hydrogen
17. Air occupies ______.
वायु क्या घेरती है?
A. Weight
B. Space
C. Water
D. Light
18. Air has ______.
वायु में क्या होता है?
A. Colour
B. Weight
C. Taste
D. Smell
19. Air exerts ______.
वायु क्या डालती है?
A. Pressure
B. Heat
C. Sound
D. Light
20. Which instrument works due to air pressure?
वायु दाब के कारण कौन-सी वस्तु कार्य करती है?
A. Spoon
B. Straw
C. Plate
D. Cup
21. About how much of the Earth is covered with water?
पृथ्वी का लगभग कितना भाग जल से ढका है?
A. 25%
B. 50%
C. 75%
D. 100%
22. Water fit for drinking is called ______.
पीने योग्य जल को क्या कहते हैं?
A. Muddy water
B. Potable water
C. Sea water
D. Rain water
23. Which is the main source of water?
जल का मुख्य स्रोत क्या है?
A. Rivers
B. Rain
C. Wells
D. Lakes
24. Which of these is a soluble impurity?
इनमें से कौन-सी घुलनशील अशुद्धि है?
A. Sand
B. Mud
C. Salt
D. Stone
25. Which is an insoluble impurity?
इनमें से कौन-सी अघुलनशील अशुद्धि है?
A. Sugar
B. Salt
C. Mud
D. Alum
26. Which process allows heavy particles to settle down?
भारी कणों के नीचे बैठने की प्रक्रिया क्या कहलाती है?
A. Filtration
B. Sedimentation
C. Evaporation
D. Distillation
27. Which process is done after sedimentation?
अवसादन के बाद कौन-सी प्रक्रिया होती है?
A. Boiling
B. Distillation
C. Decantation
D. Chlorination
28. Which process uses filter paper?
किस प्रक्रिया में फिल्टर पेपर का उपयोग होता है?
A. Sedimentation
B. Decantation
C. Filtration
D. Boiling
29. Water changes into vapour during ______.
जल किस प्रक्रिया में भाप बनता है?
A. Filtration
B. Evaporation
C. Sedimentation
D. Decantation
30. The purest form of water is called ______.
जल का सबसे शुद्ध रूप क्या कहलाता है?
A. Rain water
B. River water
C. Distilled water
D. Pond water
31. Distilled water is obtained by ______.
आसुत जल किस प्रक्रिया से प्राप्त होता है?
A. Filtration
B. Distillation
C. Sedimentation
D. Decantation
32. Boiling water kills ______.
पानी उबालने से क्या नष्ट हो जाते हैं?
A. Stones
B. Germs
C. Sand
D. Dust
33. Which chemical is added to purify water?
जल को शुद्ध करने के लिए कौन-सा रसायन मिलाया जाता है?
A. Sugar
B. Salt
C. Chlorine
D. Oil
34. Which method separates salt from water?
नमक को पानी से अलग करने के लिए कौन-सी विधि अपनाई जाती है?
A. Filtration
B. Decantation
C. Evaporation
D. Sedimentation
35. Which method gives the purest water?
सबसे शुद्ध जल किस विधि से प्राप्त होता है?
A. Sedimentation
B. Filtration
C. Distillation
D. Decantation
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Chapter 5: Money and Banking – 30 MCQ Questions
(Questions only, no answers. Options are one below another.)
1. What is money?
A. A toy
B. A medium of exchange
C. A game
D. A book
2. What is money used for?
A. Playing games
B. Buying and selling goods and services
C. Sleeping
D. Dancing
3. Which system was used before money?
A. Banking System
B. Digital Payment System
C. Barter System
D. ATM System
4. What is the barter system?
A. Buying goods with money
B. Exchanging goods without money
C. Depositing money in a bank
D. Using an ATM
5. Why was money introduced?
A. To increase problems
B. To solve the problems of the barter system
C. To make games
D. To close banks
6. Which is an example of money?
A. Coin
B. Stone
C. Leaf
D. Stick
7. Coins are usually made of:
A. Paper
B. Metal
C. Wood
D. Cloth
8. Paper money is also called:
A. Plastic Money
B. Currency Notes
C. Gold Money
D. Token Money
9. Which is plastic money?
A. Coin
B. ATM Card
C. Note
D. Shell
10. Which is an example of digital money?
A. Coin
B. UPI Payment
C. Shell
D. Gold
11. What is a bank?
A. A school
B. A place to keep money safely
C. A market
D. A hospital
12. Where do people keep their savings?
A. School
B. Bank
C. Park
D. Library
13. Which card is used to withdraw money from an ATM?
A. Library Card
B. ATM Card
C. ID Card
D. Bus Card
14. What does a passbook show?
A. Marks
B. Bank account transactions
C. Games
D. Songs
15. What is a chequebook used for?
A. Playing
B. Making payments by cheque
C. Reading
D. Drawing
16. What does "withdraw" mean?
A. Deposit money
B. Take money out of a bank account
C. Count money
D. Save money
17. What does "deposit" mean?
A. Spend money
B. Put money into a bank account
C. Borrow money
D. Lose money
18. Which service is provided by a bank?
A. Selling vegetables
B. Keeping money safe
C. Making toys
D. Growing crops
19. Which is NOT a bank service?
A. Savings Account
B. Locker Facility
C. ATM Service
D. Selling Clothes
20. What is the full form of ATM?
A. Automatic Teller Machine
B. Auto Ticket Machine
C. All Time Money
D. Any Time Market
21. Which payment method uses a mobile phone?
A. Coin
B. UPI
C. Shell
D. Barter
22. Which is the safest place to keep money?
A. Under the bed
B. Bank
C. Garden
D. Bag
23. Which of these is digital payment?
A. Google Pay
B. Coin
C. Paper Note
D. Gold
24. What is the main advantage of money?
A. It makes exchange easy.
B. It is heavy.
C. It is colourful.
D. It is made of paper.
25. Which is NOT a form of money?
A. Coin
B. Currency Note
C. ATM Card
D. Pencil
26. Why do people save money in banks?
A. To keep it safe
B. To lose it
C. To burn it
D. To throw it away
27. Which document records deposits and withdrawals?
A. Passbook
B. Newspaper
C. Diary
D. Magazine
28. Which is an online payment app?
A. PhonePe
B. Calculator
C. Camera
D. Paint
29. Which system does NOT use money?
A. Barter System
B. Banking System
C. ATM System
D. Digital Payment System
30. Which of the following is the modern method of payment?
A. UPI
B. Barter System
C. Cowrie Shells
D. Exchange of Goods
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Chapter 8: Air and Water – Answers (1–35)
C – Air (वायु)
D – Gases (गैसें)
C – Atmosphere (वायुमंडल)
C – 5
B – Troposphere (क्षोभमंडल)
C – Troposphere (क्षोभमंडल)
B – Stratosphere (समताप मंडल)
C – Stratosphere (समताप मंडल)
D – Exosphere (बहिर्मंडल)
B – Thermosphere (तापमंडल)
B – Breathing (श्वसन)
C – Nitrogen (नाइट्रोजन)
C – 78%
B – 21%
A – Burning (दहन)
C – Carbon dioxide (कार्बन डाइऑक्साइड)
B – Space (स्थान)
B – Weight (भार)
A – Pressure (दाब)
B – Straw (स्ट्रॉ)
C – 75%
B – Potable water (पीने योग्य जल)
B – Rain (वर्षा)
C – Salt (नमक)
C – Mud (कीचड़)
B – Sedimentation (अवसादन)
C – Decantation (अपवाहन)
C – Filtration (निस्पंदन)
B – Evaporation (वाष्पीकरण)
C – Distilled water (आसुत जल)
B – Distillation (आसवन)
B – Germs (कीटाणु)
C – Chlorine (क्लोरीन)
C – Evaporation (वाष्पीकरण)
C – Distillation (आसवन)
Chapter 5: Money and Banking – Answers
(1–30)
B – A medium of exchange
B – Buying and selling goods and services
C – Barter System
B – Exchanging goods without money
B – To solve the problems of the barter system
A – Coin
B – Metal
B – Currency Notes
B – ATM Card
B – UPI Payment
B – A place to keep money safely
B – Bank
B – ATM Card
B – Bank account transactions
B – Making payments by cheque
B – Take money out of a bank account
B – Put money into a bank account
B – Keeping money safe
D – Selling Clothes
A – Automatic Teller Machine
B – UPI
B – Bank
A – Google Pay
A – It makes exchange easy.
D – Pencil
A – To keep it safe
A – Passbook
A – PhonePe
A – Barter System
A – UPI
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