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

1731. The phenomenon of occurrence of additional species found in the ecotone or transitional zone between adjoining ecosystems is known as _________

by
A. Edge effect
B. Root effect
C. Raman effect
D. Coolidge effect
✅ The correct answer is option A.
The phenomenon of occurrence of additional species found in the ecotone or transitional zone between adjoining ecosystems is known as edge effect.

1735. Ecological niche of an organism represents

by
A. The resource it utilizes
B. Functional role in the ecological system
C. The range of conditions that it can tolerate
D. All of these
✅ The correct answer is option D.
The ecological niche of an organism represents the position and the role played by the organism in the ecosystem in which it lives. Here, D is the correct answer.

1736. The presence of solid, liquid or gaseous compounds, which may not be normally present, or in excess concentration in the atmosphere is called

by
A. air pollution
B. water pollution
C. soil pollution
D. radioactive pollution
✅ The correct answer is option A.
The presence in or introduction into the air of a substance which has harmful or poisonous effects is called air pollution.

1737. _________ are used for converting saline or brackish water into pure distilled water.

by
A. Photo voltaic cells
B. Solar desalination systems
C. Solar cookers
D. Solar water-heating
✅ The correct answer is option B.
Distillation desalination is one of mankind’s earliest forms of water treatment, and it is still a popular treatment solution throughout the world today. In ancient times, many civilizations used this process on their ships to convert sea water into drinking water.

1740. Which functional feeding groups are involved in the process of in-stream physical breakdown of coarse material into fine particulate organic matter?

by
A. Collector filterers
B. Shredders
C. Grazers
D. Collector gatherers
✅ The correct answer is option B.
Shredders are involved in the process of in-stream physical breakdown of coarse material into fine particulate organic matter.