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.

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📘 Biology MCQs
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📘 World Organisations MCQs

1581. An ecosystem gradually merges with an adjoining one through a transitional zone is called the ______________

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A. Ecological niche
B. ecological footprint
C. ecotone
D. shore effect
✅ The correct answer is option C.
An ecotone is a transition area between two biomes. It is where two communities meet and integrate. It may be narrow or wide, and it may be local (the zone between a field and forest) or regional (the transition between forest and grassland ecosystems).

1582. Red Data Book Provides data on

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A. Red flowered plants
B. Red colored fishes
C. Lists of plants and animals
D. Endangered plants and animals
✅ The correct answer is option D.
The Red data book is the state document established for documenting rare and endangered species of animals, plants and fungi. This book provides central information for studies and monitoring programmes on rare and endangered species and their habits.

1585. Suppose saturated polar air has an air temperature and dew point of -10o C, and unsaturated desert air has an air temperature of 35o C and a dew point of 10o C. The desert air contains ______ water vapour and has a ________ relative humidity than the polar air.

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A. More, lower
B. More, higher
C. Less, lower
D. Less, higher
✅ The correct answer is option A.
Suppose saturated polar air has an air temperature and dew point of -10o C, and unsaturated desert air has an air temperature of 35o C and a dew point of 10o C. The desert air contains more water vapour and has a relative humidity than the polar air.

1589. The most important reason for decrease in biodiversity is

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A. Habitat pollution
B. Introduction of exotic species
C. Over-exploitation
D. Habitat destruction
✅ The correct answer is option D.
The main cause of the loss of biodiversity can be attributed to the influence of human beings on the world’s ecosystem, In fact human beings have deeply altered the environment, and have modified the territory, exploiting the species directly, for example by fishing and hunting, changing the biogeochemical cycles and transferring species from one area to another of the planet.

1590. In which of the following the maximum plant diversity is found

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A. Tropical evergreen forests
B. Tropical moist deciduous forests
C. Sub tropical mountain forests
D. Temperate moist forests
✅ The correct answer is option A.
Species diversity is greatest in the tropics, particularly in tropical forests and coral reefs. The Amazon basin in South America has the largest area of tropical forests.