Shaktimatha Learning – Complete Current Affairs & Economy Library
పోటీ పరీక్షలకు పూర్తి స్టడీ మెటీరియల్ హబ్
Complete Learning Hub
Indian Economy Complete Series
- Economy Page 1 – Basics
- Economy Page 2 – Concepts
- Economy Page 3 – Advanced
- Economy Page 4 – Revision
- Economy Page 5 – Strategy
Daily Current Affairs Series (April 10, 2026)
Special Topics
- Climate Change (Complete Analysis)
- Artificial Intelligence (AI)
- Indian Economy (Full Series)
Complete Preparation Platform for Competitive Exams
సైన్స్ మరియు సాంకేతికం – 200 MCQs (Page 1)
Shaktimatha Learning – Competitive Exams Special
MCQs (1–40)
1. AI అంటే ఏమిటి?
A) Automatic Input
B) Artificial Intelligence
C) Advanced Internet
D) Auto Integration
2. ISRO ఏ దేశానికి చెందినది?
A) USA
B) China
C) India
D) Russia
3. DNA యొక్క పూర్తి పేరు ఏమిటి?
A) Digital Network Access
B) Deoxyribonucleic Acid
C) Data Network Array
D) None
4. కంప్యూటర్ బ్రెయిన్ను ఏమంటారు?
A) RAM
B) CPU
C) ROM
D) Monitor
5. ఇంటర్నెట్ వేగాన్ని ఏ యూనిట్లో కొలుస్తారు?
A) Meter
B) Byte
C) Mbps
D) Volt
6. ISRO ప్రధాన కార్యాలయం ఎక్కడ ఉంది?
A) Delhi
B) Mumbai
C) Bengaluru
D) Chennai
7. AI ఏ దానికి సంబంధించినది?
A) Agriculture
B) Human Intelligence Simulation
C) Transport
D) Banking
8. భారత తొలి ఉపగ్రహం ఏది?
A) INSAT
B) Aryabhata
C) PSLV
D) GSLV
9. UPI పూర్తి పేరు ఏమిటి?
A) Unified Payment Interface
B) Universal Payment Interface
C) Unique Payment Index
D) User Payment Interface
10. రోబోటిక్స్ ఏదిని సూచిస్తుంది?
A) Farming
B) Machines and Automation
C) Weather
D) Medicine
11. GPS పూర్తి పేరు ఏమిటి?
A) Global Positioning System
B) General Position System
C) Global Power Source
D) Geo Power System
12. 5G అంటే ఏమిటి?
A) Fifth Generation
B) Fifth Growth
C) Fast Generation
D) None
13. Cloud Computing అంటే ఏమిటి?
A) Weather
B) Internet Storage
C) Rain
D) Hardware
14. RAM అంటే ఏమిటి?
A) Permanent Memory
B) Temporary Memory
C) Software
D) CPU
15. CPU పూర్తి పేరు ఏమిటి?
A) Central Process Unit
B) Central Processing Unit
C) Computer Process Unit
D) Control Process Unit
16. Biotechnology ఏదితో సంబంధం కలిగి ఉంటుంది?
A) Machines
B) Living Organisms
C) Metals
D) Energy
17. Vaccine ఉపయోగం ఏమిటి?
A) Energy
B) Disease Protection
C) Transport
D) Internet
18. Internet ను ఎవరు అభివృద్ధి చేశారు?
A) Bill Gates
B) Tim Berners-Lee
C) Elon Musk
D) Steve Jobs
19. ఉపగ్రహాలు ఏ శక్తితో పనిచేస్తాయి?
A) Electricity
B) Solar Energy
C) Fuel
D) Water
20. EV అంటే ఏమిటి?
A) Electric Vehicle
B) Energy Voltage
C) Engine Vehicle
D) None
21. Nanotechnology ఏదిపై పని చేస్తుంది?
A) Large Objects
B) Very Small Particles
C) Planets
D) Stars
22. Wi-Fi అంటే ఏమిటి?
A) Wired Network
B) Wireless Network
C) Software
D) Device
23. HTTP పూర్తి పేరు ఏమిటి?
A) Hyper Text Transfer Protocol
B) High Transfer Protocol
C) Hyper Tool Protocol
D) None
24. Email అంటే ఏమిటి?
A) Electronic Mail
B) Easy Mail
C) Electric Mail
D) None
25. Android ఏమిటి?
A) Hardware
B) Operating System
C) App
D) Device
26. AI ఎక్కడ ఉపయోగిస్తారు?
A) Healthcare
B) Banking
C) Education
D) All
27. Gaganyaan మిషన్ ఏ దేశానికి చెందినది?
A) USA
B) India
C) China
D) Russia
28. Solar Energy ఎక్కడి నుండి వస్తుంది?
A) Moon
B) Sun
C) Earth
D) Water
29. Renewable Energy కి ఉదాహరణ ఏది?
A) Coal
B) Petrol
C) Solar
D) Diesel
30. Data ని ఏదిగా మార్చుతారు?
A) Input
B) Output
C) Information
D) File
31. Internet ఏదిపై పనిచేస్తుంది?
A) Network
B) Electricity
C) Battery
D) Cable
32. AI ఏవి ఉపయోగిస్తుంది?
A) Data
B) Algorithms
C) Machine Learning
D) All
33. Computer Virus అంటే ఏమిటి?
A) Hardware
B) Software Problem
C) Device
D) Network
34. Space Research ఏదిని అధ్యయనం చేస్తుంది?
A) Earth
B) Universe
C) Ocean
D) Soil
35. Robotics ఎక్కడ ఉపయోగిస్తారు?
A) Industry
B) Medicine
C) Defence
D) All
36. Internet of Things అంటే ఏమిటి?
A) Connected Devices
B) Connected People
C) Connected Data
D) None
37. Biotechnology ఎక్కడ ఉపయోగిస్తారు?
A) Agriculture
B) Medicine
C) Food Production
D) All
38. Renewable Energy అంటే ఏమిటి?
A) Limited
B) Unlimited
C) Harmful
D) None
39. AI భవిష్యత్తు ఎలా ఉంటుంది?
A) Slow Growth
B) No Growth
C) High Growth
D) Decline
40. ISRO యొక్క ప్రధాన పని ఏమిటి?
A) Banking
B) Space Research
C) Agriculture
D) Education
Shaktimatha Learning | Mega Learning Library
సైన్స్ మరియు సాంకేతికం – 200 MCQs (Page 2)
Shaktimatha Learning – Competitive Exams Special
MCQs (41–80)
41. కంప్యూటర్లో Input device ఏది?
A) Monitor
B) Keyboard
C) Printer
D) Speaker
42. Output device ఏది?
A) Mouse
B) Keyboard
C) Monitor
D) Scanner
43. Hard Disk ఏమిటి?
A) Input device
B) Storage device
C) Output device
D) Software
44. Software అంటే ఏమిటి?
A) Physical parts
B) Programs
C) Devices
D) Network
45. Hardware అంటే ఏమిటి?
A) Programs
B) Physical components
C) Data
D) Files
46. Operating System ఉదాహరణ ఏది?
A) Windows
B) CPU
C) Mouse
D) Printer
47. Smartphone ఏది?
A) Hardware only
B) Software only
C) Both hardware and software
D) None
48. Google ఏమిటి?
A) Browser
B) Search Engine
C) Device
D) Software
49. Browser ఉదాహరణ ఏది?
A) Chrome
B) Google
C) CPU
D) RAM
50. Email పంపడానికి ఏది అవసరం?
A) Internet
B) CPU
C) Mouse
D) Printer
51. Bluetooth అంటే ఏమిటి?
A) Wired connection
B) Wireless communication
C) Software
D) Hardware
52. USB అంటే ఏమిటి?
A) Storage device
B) Connection port
C) Software
D) Network
53. Data అంటే ఏమిటి?
A) Information
B) Raw facts
C) Output
D) Device
54. Information అంటే ఏమిటి?
A) Raw data
B) Processed data
C) Input
D) Hardware
55. Internet full form ఏమిటి?
A) International Network
B) Interconnected Network
C) Internal Network
D) None
56. Website అంటే ఏమిటి?
A) Page
B) Collection of web pages
C) Software
D) Device
57. URL అంటే ఏమిటి?
A) Web address
B) Software
C) Hardware
D) File
58. Domain name అంటే ఏమిటి?
A) IP address
B) Website name
C) Software
D) Network
59. IP address అంటే ఏమిటి?
A) Website name
B) Unique number for device
C) Software
D) Data
60. Firewall ఉపయోగం ఏమిటి?
A) Security
B) Storage
C) Output
D) Input
61. Antivirus ఉపయోగం ఏమిటి?
A) Speed
B) Security
C) Storage
D) Output
62. Cyber security అంటే ఏమిటి?
A) Data protection
B) Hardware
C) Software
D) Device
63. Hacker అంటే ఎవరు?
A) User
B) Programmer
C) Unauthorized access person
D) Teacher
64. Encryption అంటే ఏమిటి?
A) Data protection method
B) Device
C) Software
D) Network
65. Decryption అంటే ఏమిటి?
A) Data encoding
B) Data decoding
C) Storage
D) Network
66. Cloud అంటే ఏమిటి?
A) Weather
B) Internet storage
C) Device
D) Software
67. Server అంటే ఏమిటి?
A) Provides data
B) Stores data
C) Controls network
D) All
68. Client అంటే ఏమిటి?
A) Server
B) User device
C) Software
D) Network
69. LAN అంటే ఏమిటి?
A) Large network
B) Local Area Network
C) Long Area Network
D) None
70. WAN అంటే ఏమిటి?
A) Wide Area Network
B) Wireless Area Network
C) Web Area Network
D) None
71. Modem ఉపయోగం ఏమిటి?
A) Connect internet
B) Storage
C) Output
D) Input
72. Router ఉపయోగం ఏమిటి?
A) Connect networks
B) Storage
C) Output
D) Input
73. GPS ఉపయోగం ఏమిటి?
A) Navigation
B) Storage
C) Input
D) Output
74. Satellite ఉపయోగం ఏమిటి?
A) Communication
B) Navigation
C) Weather
D) All
75. Drone అంటే ఏమిటి?
A) Flying device
B) Software
C) Network
D) Storage
76. AI ఉపయోగం ఎక్కడ ఉంది?
A) Healthcare
B) Banking
C) Education
D) All
77. Machine Learning అంటే ఏమిటి?
A) Programming
B) Learning by machines
C) Hardware
D) Network
78. Deep Learning అంటే ఏమిటి?
A) Advanced ML
B) Software
C) Hardware
D) Network
79. Robotics ఉపయోగం ఎక్కడ ఉంది?
A) Industry
B) Medicine
C) Defence
D) All
80. Space technology ఉపయోగం ఏమిటి?
A) Communication
B) Weather
C) Navigation
D) All
Shaktimatha Learning | Mega Learning Library
Answer Key (41–80)
41. B
42. C
43. B
44. B
45. B
46. A
47. C
48. B
49. A
50. A
51. B
52. B
53. B
54. B
55. B
56. B
57. A
58. B
59. B
60. A
61. B
62. A
63. C
64. A
65. B
66. B
67. D
68. B
69. B
70. A
71. A
72. A
73. A
74. D
75. A
76. D
77. B
78. A
79. D
80. D
సైన్స్ మరియు సాంకేతికం – 200 MCQs (Page 3)
Shaktimatha Learning – Competitive Exams Special
MCQs (81–120)
81. Operating System యొక్క పని ఏమిటి?
A) Hardware control
B) Software control
C) Both
D) None
82. Keyboard ఏ రకం device?
A) Output
B) Input
C) Storage
D) Network
83. Printer ఏ రకం device?
A) Input
B) Output
C) Storage
D) Software
84. Scanner ఏది?
A) Input device
B) Output device
C) Storage device
D) Network
85. ROM అంటే ఏమిటి?
A) Temporary memory
B) Permanent memory
C) Software
D) Hardware
86. ALU అంటే ఏమిటి?
A) Arithmetic Logic Unit
B) Advanced Logic Unit
C) Automatic Logic Unit
D) None
87. Cache Memory ఏమిటి?
A) Slow memory
B) Fast memory
C) External memory
D) Storage
88. Input Output unit ఏదిలో భాగం?
A) CPU
B) Computer system
C) Software
D) Network
89. Excel ఏమిటి?
A) OS
B) Application software
C) Hardware
D) Network
90. MS Word ఏమిటి?
A) OS
B) Application software
C) Hardware
D) Network
91. Database అంటే ఏమిటి?
A) Collection of data
B) Device
C) Software
D) Network
92. SQL ఉపయోగం ఏమిటి?
A) Programming
B) Database management
C) Hardware
D) Network
93. Algorithm అంటే ఏమిటి?
A) Step-by-step solution
B) Device
C) Software
D) Network
94. Programming language ఉదాహరణ ఏది?
A) C
B) Java
C) Python
D) All
95. Compiler పని ఏమిటి?
A) Translate code
B) Store data
C) Output
D) Input
96. Debugging అంటే ఏమిటి?
A) Error finding
B) Error removing
C) Both
D) None
97. Virus ప్రభావం ఏమిటి?
A) Damage data
B) Slow system
C) Both
D) None
98. Backup ఎందుకు అవసరం?
A) Data safety
B) Speed
C) Storage
D) Output
99. Password ఉపయోగం ఏమిటి?
A) Security
B) Storage
C) Output
D) Input
100. Login అంటే ఏమిటి?
A) Access system
B) Exit system
C) Storage
D) Output
101. Logout అంటే ఏమిటి?
A) Enter system
B) Exit system
C) Storage
D) Input
102. Social media అంటే ఏమిటి?
A) Communication platform
B) Device
C) Software
D) Network
103. YouTube ఏమిటి?
A) Search engine
B) Video platform
C) Software
D) Hardware
104. Facebook ఏమిటి?
A) Social media
B) Device
C) Network
D) Software
105. Twitter ఏమిటి?
A) Social media
B) Device
C) Software
D) Hardware
106. Email ఉపయోగం ఏమిటి?
A) Communication
B) Storage
C) Output
D) Input
107. Spam అంటే ఏమిటి?
A) Important mail
B) Unwanted mail
C) Data
D) Software
108. Attachment అంటే ఏమిటి?
A) File
B) Device
C) Software
D) Network
109. Download అంటే ఏమిటి?
A) Data receive
B) Data send
C) Storage
D) Output
110. Upload అంటే ఏమిటి?
A) Data send
B) Data receive
C) Storage
D) Input
111. Streaming అంటే ఏమిటి?
A) Live data viewing
B) Storage
C) Input
D) Output
112. E-commerce అంటే ఏమిటి?
A) Online shopping
B) Device
C) Software
D) Network
113. Digital payment అంటే ఏమిటి?
A) Online transaction
B) Offline transaction
C) Cash payment
D) None
114. ATM ఉపయోగం ఏమిటి?
A) Withdraw cash
B) Deposit cash
C) Both
D) None
115. Debit card ఉపయోగం ఏమిటి?
A) Payment
B) Storage
C) Input
D) Output
116. Credit card ఉపయోగం ఏమిటి?
A) Loan payment
B) Cash
C) Storage
D) Network
117. OTP అంటే ఏమిటి?
A) One Time Password
B) One Type Password
C) Online Password
D) None
118. QR code ఉపయోగం ఏమిటి?
A) Payment
B) Storage
C) Output
D) Input
119. Blockchain అంటే ఏమిటి?
A) Digital ledger
B) Device
C) Software
D) Network
120. Cryptocurrency అంటే ఏమిటి?
A) Digital currency
B) Paper currency
C) Coin
D) None
Answer Key (81–120)
81. C
82. B
83. B
84. A
85. B
86. A
87. B
88. B
89. B
90. B
91. A
92. B
93. A
94. D
95. A
96. C
97. C
98. A
99. A
100. A
101. B
102. A
103. B
104. A
105. A
106. A
107. B
108. A
109. A
110. A
111. A
112. A
113. A
114. C
115. A
116. A
117. A
118. A
119. A
120. A
Shaktimatha Learning | Mega Learning Library
సైన్స్ మరియు సాంకేతికం – 200 MCQs (Page 4)
Shaktimatha Learning – Competitive Exams Special
MCQs (121–160)
121. Renewable energy కి ఉదాహరణ ఏది?
A) Coal
B) Petrol
C) Solar energy
D) Diesel
122. Non-renewable energy ఏది?
A) Wind
B) Solar
C) Coal
D) Water
123. Solar panel పని ఏమిటి?
A) Heat produce
B) Electricity produce
C) Store energy
D) None
124. Wind energy ఎలా ఉత్పత్తి అవుతుంది?
A) Water
B) Air movement
C) Heat
D) Light
125. Hydroelectric power ఎలా ఉత్పత్తి అవుతుంది?
A) Air
B) Sun
C) Water
D) Soil
126. Fossil fuels అంటే ఏమిటి?
A) Renewable
B) Non-renewable
C) Unlimited
D) Clean
127. Global warming కారణం ఏమిటి?
A) Oxygen
B) Carbon dioxide
C) Nitrogen
D) Hydrogen
128. Greenhouse gases ఉదాహరణ ఏది?
A) Oxygen
B) CO₂
C) Nitrogen
D) Helium
129. Ozone layer పని ఏమిటి?
A) Heat increase
B) UV rays protection
C) Rainfall
D) Wind
130. Pollution అంటే ఏమిటి?
A) Clean air
B) Contamination
C) Energy
D) Water
131. Electric vehicle ప్రయోజనం ఏమిటి?
A) Pollution
B) Less pollution
C) Noise
D) Fuel use
132. Battery పని ఏమిటి?
A) Store energy
B) Produce energy
C) Destroy energy
D) None
133. Nuclear energy ఎలా ఉత్పత్తి అవుతుంది?
A) Chemical reaction
B) Nuclear reaction
C) Air
D) Water
134. Robotics ఏ రంగంలో ఉపయోగం ఉంది?
A) Industry
B) Medicine
C) Defence
D) All
135. AI ఉపయోగం ఎక్కడ ఉంది?
A) Healthcare
B) Banking
C) Education
D) All
136. Machine Learning ఏదిలో భాగం?
A) AI
B) Hardware
C) Network
D) Device
137. Data Science అంటే ఏమిటి?
A) Data analysis
B) Storage
C) Hardware
D) Network
138. Big Data అంటే ఏమిటి?
A) Small data
B) Large data sets
C) Device
D) Software
139. Cloud storage ప్రయోజనం ఏమిటి?
A) Data storage online
B) Offline storage
C) Hardware
D) Device
140. Cyber crime అంటే ఏమిటి?
A) Legal activity
B) Illegal online activity
C) Hardware
D) Software
141. Firewall పని ఏమిటి?
A) Security
B) Storage
C) Input
D) Output
142. Antivirus పని ఏమిటి?
A) Speed
B) Protection
C) Storage
D) Output
143. Encryption ఎందుకు ఉపయోగిస్తారు?
A) Security
B) Storage
C) Output
D) Input
144. Blockchain ఉపయోగం ఏమిటి?
A) Digital records
B) Storage
C) Hardware
D) Network
145. Cryptocurrency అంటే ఏమిటి?
A) Digital money
B) Paper money
C) Coin
D) None
146. Drone ఉపయోగం ఏమిటి?
A) Survey
B) Delivery
C) Defence
D) All
147. Satellite ఉపయోగం ఏమిటి?
A) Communication
B) Weather
C) Navigation
D) All
148. GPS ఉపయోగం ఏమిటి?
A) Location tracking
B) Storage
C) Input
D) Output
149. Space technology ఉపయోగం ఏమిటి?
A) Communication
B) Weather
C) Navigation
D) All
150. Biotechnology ఉపయోగం ఎక్కడ ఉంది?
A) Agriculture
B) Medicine
C) Food production
D) All
151. Genetic engineering అంటే ఏమిటి?
A) DNA modification
B) Hardware
C) Software
D) Network
152. Vaccine ఎలా పనిచేస్తుంది?
A) Kill disease
B) Build immunity
C) Store energy
D) None
153. Pandemic అంటే ఏమిటి?
A) Local disease
B) Global disease spread
C) Device
D) Network
154. Telemedicine అంటే ఏమిటి?
A) Remote treatment
B) Hospital
C) Device
D) Software
155. 5G ప్రయోజనం ఏమిటి?
A) Slow internet
B) Fast internet
C) No internet
D) None
156. Internet of Things అంటే ఏమిటి?
A) Connected devices
B) Connected people
C) Connected data
D) None
157. Smart city అంటే ఏమిటి?
A) Digital city
B) Village
C) Hardware
D) Network
158. Digital India లక్ష్యం ఏమిటి?
A) Digital services
B) Agriculture
C) Defence
D) None
159. E-governance అంటే ఏమిటి?
A) Digital government services
B) Manual work
C) Offline work
D) None
160. Startup అంటే ఏమిటి?
A) New business
B) Old business
C) Device
D) Network
Answer Key (121–160)
121. C
122. C
123. B
124. B
125. C
126. B
127. B
128. B
129. B
130. B
131. B
132. A
133. B
134. D
135. D
136. A
137. A
138. B
139. A
140. B
141. A
142. B
143. A
144. A
145. A
146. D
147. D
148. A
149. D
150. D
151. A
152. B
153. B
154. A
155. B
156. A
157. A
158. A
159. A
160. A
Shaktimatha Learning | Mega Learning Library
సైన్స్ మరియు సాంకేతికం – 200 MCQs (Page 5)
Shaktimatha Learning – Competitive Exams Special
MCQs (161–200)
161. Internet యొక్క ముఖ్య పని ఏమిటి?
A) Communication
B) Storage
C) Output
D) Input
162. Email ఉపయోగం ఏమిటి?
A) Communication
B) Storage
C) Device
D) Network
163. Website అంటే ఏమిటి?
A) Page
B) Collection of pages
C) Device
D) Network
164. Search engine ఉదాహరణ ఏది?
A) Chrome
B) Google
C) CPU
D) RAM
165. Browser ఉదాహరణ ఏది?
A) Google
B) Chrome
C) CPU
D) RAM
166. URL అంటే ఏమిటి?
A) Address
B) Device
C) Software
D) Network
167. IP address పని ఏమిటి?
A) Identify device
B) Store data
C) Output
D) Input
168. Cyber security ఎందుకు అవసరం?
A) Protection
B) Storage
C) Speed
D) Output
169. Hacker అంటే ఎవరు?
A) User
B) Unauthorized access person
C) Teacher
D) Student
170. Virus ప్రభావం ఏమిటి?
A) Damage system
B) Improve speed
C) Store data
D) None
171. Cloud computing ఉపయోగం ఏమిటి?
A) Online storage
B) Offline storage
C) Hardware
D) Device
172. Server పని ఏమిటి?
A) Provide data
B) Store data
C) Both
D) None
173. Client అంటే ఏమిటి?
A) Server
B) User device
C) Network
D) Software
174. LAN అంటే ఏమిటి?
A) Local Area Network
B) Large Area Network
C) Long Area Network
D) None
175. WAN అంటే ఏమిటి?
A) Wide Area Network
B) Web Area Network
C) Wireless Area Network
D) None
176. Router పని ఏమిటి?
A) Connect networks
B) Store data
C) Output
D) Input
177. Modem పని ఏమిటి?
A) Connect internet
B) Store data
C) Output
D) Input
178. GPS ఉపయోగం ఏమిటి?
A) Navigation
B) Storage
C) Input
D) Output
179. Satellite ఉపయోగం ఏమిటి?
A) Communication
B) Weather
C) Navigation
D) All
180. Drone అంటే ఏమిటి?
A) Flying device
B) Software
C) Network
D) Storage
181. AI ఉపయోగం ఎక్కడ ఉంది?
A) Healthcare
B) Banking
C) Education
D) All
182. Machine Learning అంటే ఏమిటి?
A) Learning by machines
B) Hardware
C) Network
D) Device
183. Deep Learning అంటే ఏమిటి?
A) Advanced ML
B) Software
C) Hardware
D) Network
184. Robotics ఉపయోగం ఎక్కడ ఉంది?
A) Industry
B) Medicine
C) Defence
D) All
185. Biotechnology ఉపయోగం ఎక్కడ ఉంది?
A) Agriculture
B) Medicine
C) Food production
D) All
186. Genetic engineering అంటే ఏమిటి?
A) DNA modification
B) Hardware
C) Software
D) Network
187. Vaccine పని ఏమిటి?
A) Build immunity
B) Store energy
C) Output
D) Input
188. Pandemic అంటే ఏమిటి?
A) Global disease spread
B) Local disease
C) Device
D) Network
189. Telemedicine అంటే ఏమిటి?
A) Remote treatment
B) Hospital
C) Device
D) Software
190. Digital payment అంటే ఏమిటి?
A) Online transaction
B) Cash
C) Storage
D) None
191. UPI ఉపయోగం ఏమిటి?
A) Payment
B) Storage
C) Output
D) Input
192. OTP అంటే ఏమిటి?
A) One Time Password
B) One Type Password
C) Online Password
D) None
193. QR code ఉపయోగం ఏమిటి?
A) Payment
B) Storage
C) Output
D) Input
194. Blockchain అంటే ఏమిటి?
A) Digital ledger
B) Device
C) Software
D) Network
195. Cryptocurrency అంటే ఏమిటి?
A) Digital currency
B) Paper currency
C) Coin
D) None
196. Renewable energy ఉదాహరణ ఏది?
A) Solar
B) Coal
C) Petrol
D) Diesel
197. Non-renewable energy ఏది?
A) Wind
B) Solar
C) Coal
D) Water
198. Pollution అంటే ఏమిటి?
A) Contamination
B) Clean air
C) Energy
D) Water
199. Global warming కారణం ఏమిటి?
A) CO₂
B) Oxygen
C) Nitrogen
D) Hydrogen
200. Ozone layer పని ఏమిటి?
A) UV protection
B) Heat increase
C) Rainfall
D) Wind
Answer Key (161–200)
161. A
162. A
163. B
164. B
165. B
166. A
167. A
168. A
169. B
170. A
171. A
172. C
173. B
174. A
175. A
176. A
177. A
178. A
179. D
180. A
181. D
182. A
183. A
184. D
185. D
186. A
187. A
188. A
189. A
190. A
191. A
192. A
193. A
194. A
195. A
196. A
197. C
198. A
199. A
200. A
Shaktimatha Learning | Mega Learning Library
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