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

1884. The crucial species that determine the ability of large number of other species is termed as _________ species.

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A. Important
B. Crucial
C. Significant
D. Keystone
✅ The correct answer is option D.
Within biological communities, some species may be important in determining the ability of large number of other species to persist in the community. It has a disproportionately large effect on its environment relative to its abundance. These crucial species are known as key stone species.

1886. In which year Silent Valley was declared as National Park?

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A. 1988
B. 1982
C. 1984
D. 1981
✅ The correct answer is option C.
In 1983 the then Prime Minister of India, Indira Gandhi, decided to abandon the Project. In the year of 1984, it was declared as a National Park with the project area included. In 1986, the Silent Valley was declared the core area in the Nilgiri Biosphere Reserve.

1887. The effects of radioactive pollutants depends upon

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A. Rate of diffusion
B. Energy releasing capacity
C. Rate of deposition of the contaminant
D. All of these
✅ The correct answer is option D.
The extent of damage or danger posed to the environment depends upon the radioactive material concentration, the energy emitted by the radiation, proximity of the radioactive materials to those exposes, and the radiation type.

1888. According to Wein’s displacement law, the wavelength at which maximum radiation occurs

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A. Is inversely proportional to the temperature
B. Is proportional to the temperature
C. Is inversely proportional to the pressure
D. Is proportional to the pressure
✅ The correct answer is option A.
According to Wein’s displacement law, the wavelength at which maximum radiation occurs is inversely proportional to the temperature.