General Knowledge

Boost your exam preparation with the latest General Knowledge MCQs with answers and explanations. Our collection covers current affairs, world geography, history, Pakistan studies, sports, science, technology, and important international organizations. These General Knowledge multiple-choice questions are designed for students, job seekers, and competitive exam aspirants preparing for NTS, PPSC, FPSC, CSS, PMS, university entry tests, and recruitment exams. Practice online with updated General Knowledge MCQs to improve awareness, sharpen memory, and score higher in tests and interviews.

📘 Awards and Honours MCQs
📘 Basic General Knowledge MCQs
📘 Biology MCQs
📘 Books and Authors MCQs
📘 CAPITAL & FAMOUS CITIES
📘 Chemistry MCQs
📘 Days and Years MCQs
📘 Environmental Science MCQs
📘 Famous Personalities MCQs
📘 Famous Places in India MCQs
📘 General Science MCQs
📘 GK
📘 Honours and Awards MCQs
📘 Indian Culture MCQs
📘 Indian Geography MCQs
📘 INTERNATIONAL AFFAIRS
📘 Inventions MCQs
📘 Physics MCQs
📘 Sports MCQs
📘 Teaching and Research MCQs
📘 Technology MCQs
📘 World Geography MCQs
📘 World Organisations MCQs

1671. The earth’s radiation is often referred to as ________radiation, while the sun’s radiation is often referred to as _________radiation.

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A. Shortwave, longwave
B. Shortwave, shortwave
C. Longwave, shortwave
D. Longwave, longwave
✅ The correct answer is option C.
The earth’s radiation is often referred to as longwave radiation, while the sun’s radiation is often referred to as shortwave radiation.

1673. In the stratosphere, the air temperature normally:

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A. Decreases with increasing height
B. Increases with increasing height
C. Both increases and decreases depending on the season
D. Cannot be measured
✅ The correct answer is option B.
Within the stratosphere temperatures increase with altitude (see temperature inversion); the top of the stratosphere has a temperature of about 270 K (−3°C or 26.6°F).

1674. “Smog” is a mixture of

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A. Smoke and Fog
B. Snow and Fog
C. Snow and Dust
D. Sulphur Dioxide and Fog
✅ The correct answer is option A.
Smog is a kind of air pollution, originally named for the mixture of smoke and fog in the air. Classic smog results from large amounts of coal burning in an area and is caused by a mixture of smoke and sulfur dioxide.

1675. Which of the following gases are mainly responsible for the atmospheric greenhouse effect in the earth’s atmosphere?

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A. Oxygen and nitrogen
B. Nitrogen and carbon dioxide
C. Ozone and oxygen
D. Water vapor and carbon dioxide
✅ The correct answer is option D.
Greenhouse gas, any gas that has the property of absorbing infrared radiation (net heat energy) emitted from Earth’s surface and reradiating it back to Earth’s surface, thus contributing to the greenhouse effect. Carbon dioxide, methane, and water vapour are the most important greenhouse gases.

1676. Blue revolution is associated with

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A. Agriculture
B. Iron and steel
C. Irrigation
D. Fishing
✅ The correct answer is option D.
The term “blue revolution” refers to the remarkable emergence of aquaculture as an important and highly productive agricultural activity. Aquaculture refers to all forms of active culturing of aquatic animals and plants, occurring in marine, brackish, or fresh waters.

1678. This is used as a guide to planting and for determining the approximate date for harvesting crops:

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A. Growing degree-days
B. Heating degree-days
C. Cooling degree-days
D. Mean annual temperature
✅ The correct answer is option A.
Growing degree-days is used as a guide to planting and for determining the approximate date for harvesting crops.

1679. The lag in daily temperature refers to the time lag between the:

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A. Time of maximum solar radiation and the time of maximum temperature
B. Time of minimum temperature and the time of maximum solar radiation
C. Minimum and maximum temperature for a day
D. Minimum and maximum solar energy received at the surface for a given day
✅ The correct answer is option A.
The lag in daily temperature refers to the time lag between the time of maximum solar radiation and the time of maximum temperature.