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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1891. In a population, unrestricted reproductive capacity is called as

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A. carrying capacity
B. biotic potential
C. birth rate
D. fertility rate
✅ The correct answer is option B.
Biotic potential is defined as the physiological capacity of organisms to produce their offspring under natural conditions. It is also called reproductive potential. In nature, the biotic potential of organisms is enormous but all the organisms do not survive due to the lack of food and space.

1893. Which of the following statements is not correct?

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A. The length of human hair changes as the relative humidity changes.
B. During the winter, low relative humidity can irritate the mucus membranes in the nose and throat.
C. The relative humidity is a measure of the air’s actual water vapor content.
D. A change in the air temperature can change the relative humidity.
✅ The correct answer is option C.
The relative humidity is a measure of the air’s actual water vapour content this statement is incorrect.

1895. What is Bagasse? What is it used for?

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A. Sugar cane waste –used as to make paper
B. Biogas — used as fuel
C. Liquid waste –used as fertilizer
D. Vermi compost – used as fertilizer
✅ The correct answer is option A.
Bagasse is the dry pulpy fibrous residue that remains after sugarcane or sorghum stalks are crushed to extract their juice. It is used as a biofuel for the production of heat, energy, and electricity, and in the manufacture of pulp and building materials.

1897. Which of the following provides a measure of the average speed of air molecules?

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A. Pressure
B. Temperature
C. Density
D. Heat
✅ The correct answer is option B.
Temperature is a measure of the average speed of all of the molecules in a substance (gas, liquid, or solid). The higher the air temperature, the faster the air molecules move.

1898. Of all of the energy production in the United States, what percentage is lost in distribution and inefficient use?

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A. 10
B. 25
C. 40
D. 50
✅ The correct answer is option C.
To begin with, it shows that more than half (58%) of the total energy produced in the US is wasted due to inefficiencies, such as waste heat from power plants, vehicles, and light bulbs. In other words, the US has an energy efficiency of 42%.

1899. Earth summit was held in

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A. Stockholm in 1972
B. Rio de Jeneiro in 1992
C. Paris in 1992
D. New York in 1972
✅ The correct answer is option B.
The United Nations Conference on Environment and Development (UNCED), also known as the Rio de Janeiro Earth Summit, the Rio Summit, the Rio Conference, and the Earth Summit (Portuguese: ECO92), was a major United Nations conference held in Rio de Janeiro from 3 to 14 June in 1992.

1900. Which among the following is related to the word Mesoderm ?

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A. Anatomically advanced animals having all three germ layers
B. No membrane-bound organelles, no peptidoglycan in cell walls, introns
C. Forms blood and bone (leads to complex internal organs)
D. Binomial system of classification
✅ The correct answer is option C.
Forms blood and bone (leads to complex internal organs).