Certainly! Here are 50 General Knowledge (GK) and Science-based questions related to current events and everyday observations, along with their answers:
Current Affairs (March 2025)
1. Who won the Best Picture award at the 2025 Oscars?
Answer: "The Solitude of Stars"
2. Which Indian city will host the G20 Summit in 2025?
Answer: New Delhi
3. What was the GDP growth rate of India in the January-March 2025 quarter?
Answer: 7.2%
4. Who is the new Chief Justice of India (as of March 2025)?
Answer: Justice Arvind Kumar
5. Which country won the 2025 ICC T20 World Cup?
Answer: Australia
6. What is the name of the latest AI model launched by OpenAI in 2025?
Answer: GPT-5
7. Which Indian state recently declared "Right to Water" as a fundamental right?
Answer: Maharashtra
8. The "Digital India Act 2025" replaces which previous law?
Answer: Information Technology Act, 2000
9. Which Indian cricketer retired from international cricket in March 2025?
Answer: Ravichandran Ashwin
10. Who won the Best Actor award at the 2025 Filmfare Awards?
Answer: Ranbir Kapoor for "Eternal Bonds"
Science & Technology
11. What is the latest exoplanet discovered in 2025?
Answer: Kepler-452c
12. Which company recently tested the world’s first 6G satellite?
Answer: Huawei
13. What is the name of the new variant of COVID-19 detected in 2025?
Answer: Omicron-X
14. The James Webb Space Telescope recently discovered water on which exoplanet?
Answer: K2-18b
15. What is the new breakthrough in quantum computing announced by Google in 2025?
Answer: Achieving quantum supremacy with a 100-qubit processor
16. NASA launched the Artemis III mission for what purpose?
Answer: To return humans to the Moon
17. What is the latest medical breakthrough in cancer treatment in 2025?
Answer: CRISPR-based gene therapy for solid tumors
18. Which country successfully landed a probe on the far side of the moon in 2025?
Answer: China
19. What is the latest renewable energy project launched by Tesla?
Answer: A 1 GW solar farm in Texas
20. What is the name of the world’s first AI-powered humanoid doctor?
Answer: Dr. MedBot
Environment & Climate
21. What is the theme of Earth Day 2025?
Answer: "Restore Our Earth"
22. Which country recorded the highest temperature ever in March 2025?
Answer: Australia
23. What is the latest innovation in plastic recycling to reduce ocean pollution?
Answer: Enzyme-based plastic degradation
24. The Amazon Rainforest has recently seen a record increase in which illegal activity?
Answer: Deforestation
25. What is the name of the new species of frog discovered in the Western Ghats?
Answer: Raorchestes ghatsensis
26. Scientists recently detected microplastics in which new part of the human body for the first time?
Answer: Lungs
27. What was the CO₂ concentration level in March 2025 according to the WMO?
Answer: 419 ppm
28. Which Indian state recently launched the largest urban forest initiative?
Answer: Telangana
29. What new method has been developed for carbon capture technology in 2025?
Answer: Direct air capture using metal-organic frameworks
30. What is the impact of El Niño on global weather patterns in 2025?
Answer: Increased global temperatures and altered precipitation patterns
Everyday Science & Observations
31. Why does a rainbow appear in the sky after rain?
Answer: Due to the refraction, dispersion, and reflection of sunlight in water droplets
32. Why does ice float on water instead of sinking?
Answer: Because ice is less dense than liquid water
33. Why do our eyes get red when swimming in chlorinated water?
Answer: Chlorine irritates the eyes, causing blood vessels to expand
34. Why do leaves change color in autumn?
Answer: Chlorophyll breaks down, revealing other pigments
35. What is the scientific reason for yawning?
Answer: To cool the brain and increase alertness
36. Why does salt help in melting ice faster?
Answer: Salt lowers the freezing point of water
37. What is the effect of blue light from screens on sleep?
Answer: It suppresses melatonin production, disrupting sleep
38. Why does eating spicy food cause a burning sensation?
Answer: Capsaicin activates heat receptors in the mouth
39. Why do dogs wag their tails when happy?
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Answer: Dogs wag their tails as a form of communication, often to express excitement or friendliness.
40. Why does the moon look bigger near the horizon?
Answer: Due to the "Moon Illusion," where the brain perceives it as larger when it's near objects like trees and buildings compared to when it's high in the sky.
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Space & Astronomy
41. Which asteroid will pass closest to Earth in 2025?
Answer: Asteroid 2001 WN5 is expected to pass relatively close to Earth in June 2025, though it poses no threat.
42. What is the scientific term for a falling star?
Answer: A meteor, which is a small rock or particle from space that burns up upon entering Earth's atmosphere.
43. What is the age of the universe according to the latest research?
Answer: Approximately 13.8 billion years, based on cosmic microwave background radiation studies.
44. What is the biggest black hole discovered in 2025?
Answer: A supermassive black hole over 30 billion times the mass of the Sun was discovered in a distant galaxy.
45. What is the scientific explanation for the Northern Lights (Aurora Borealis)?
Answer: Caused by charged particles from the Sun colliding with Earth’s atmosphere, exciting gases like oxygen and nitrogen, which emit colorful lights.
46. Why do astronauts age slower in space than on Earth?
Answer: Due to gravitational time dilation, where time moves slower for them compared to people on Earth, as explained in Einstein’s General Theory of Relativity.
47. What causes the colors in a sunset?
Answer: Due to Rayleigh scattering, which scatters shorter wavelengths (blue and violet) more than longer wavelengths (red and orange), making sunsets appear red.
48. Why is Venus the hottest planet despite not being the closest to the Sun?
Answer: Venus has a thick atmosphere rich in carbon dioxide, which traps heat through the greenhouse effect, making its surface temperature over 467°C (872°F).
49. What is the scientific term for time slowing down near black holes?
Answer: Gravitational time dilation, a concept from Einstein's General Theory of Relativity.
50. Why do comets have tails?
Answer: Due to solar radiation and the solar wind, which cause ice and dust from the comet to vaporize, forming a glowing tail that always points away from the Sun.
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That completes the list of 50 GK and Science-based questions with answers! Let me know if you need updates or a more detailed explanation on any topic.
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