A. CO2
B. N2O
C. CH4
D. O3
✅ The correct answer is option C.
Methane (CH4) is the potent green house gas.
Methane (CH4) is the potent green house gas.
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.
2042. Which of the following is the poorest conductor of heat?
A. Still air
B. Water
C. Ice
D. Snow
✅ The correct answer is option A.
Still air is the poorest conductor of heat.
Still air is the poorest conductor of heat.
2043. A change of one degree on the Celsius scale is ____ a change of one degree on the Fahrenheit scale.
A. Equal to
B. Larger than
C. Smaller than
D. Is in the opposite direction of
✅ The correct answer is option B.
A change of one degree on the Celsius scale is larger than a change of one degree on the Fahrenheit scale.
A change of one degree on the Celsius scale is larger than a change of one degree on the Fahrenheit scale.
2044. Which of the following group of gases cause photochemical smog?
A. Ozone, PAN and CO
B. HC, NO and PAN
C. O2, PAN, and NO2
D. O3, PAN and NO2
✅ The correct answer is option D.
O3, PAN and NO2 cause photochemical smog.
O3, PAN and NO2 cause photochemical smog.
2045. The most widely used pesticides function by disrupting
A. neurological cellular function
B. endocrine function
C. molecular events
D. renal function
✅ The correct answer is option A.
The most widely used pesticides function by disrupting neurological cellular function.
The most widely used pesticides function by disrupting neurological cellular function.
2046. The only ape found in India
A. Gorilla
B. Chimpanzee
C. Hoolock gibbon
D. Oranguttan
✅ The correct answer is option C.
Hoolock Gibbon is the only Ape found in India, a primate species from the gibbon family of Hylobatidae. The Hoolock Gibbons of India are second largest of the gibbons, found only at south of Brahmaputra and east of the Dibang rivers in North East Indian states.
Hoolock Gibbon is the only Ape found in India, a primate species from the gibbon family of Hylobatidae. The Hoolock Gibbons of India are second largest of the gibbons, found only at south of Brahmaputra and east of the Dibang rivers in North East Indian states.
2047. The limitating factor in temperate and boreal forest is
A. Nutrients
B. Frost
C. Oxygen
D. Sunlight
✅ The correct answer is option D.
Due to the older age and species diversity of the temperate forest ecosystems, many grasses and lower lying shrubs have difficulty growing to the breadth of the canopy composed of the taller trees. As a result, little sunlight actually reaches the forest floor, which serves as its own limiting factor.
Due to the older age and species diversity of the temperate forest ecosystems, many grasses and lower lying shrubs have difficulty growing to the breadth of the canopy composed of the taller trees. As a result, little sunlight actually reaches the forest floor, which serves as its own limiting factor.
2048. Which one is nature’s cleaner?
A. Consumers
B. Producers
C. Decomposers and Scavengers
D. Symbionts
✅ The correct answer is option C.
Decomposers and scavengers are those which decomposes the waster organic matter and release energy back in the environment. Hence, they are also called as nature’s cleaner. They are present in the apex of the pyramid. Thus, the correct answer is ‘Decomposers and scavengers.
Decomposers and scavengers are those which decomposes the waster organic matter and release energy back in the environment. Hence, they are also called as nature’s cleaner. They are present in the apex of the pyramid. Thus, the correct answer is ‘Decomposers and scavengers.
2049. Which one of the following problems is not created by noise pollution?
A. Diarrhoea
B. Hypertension
C. Deafness
D. Irritation
✅ The correct answer is option A.
Diarrhoea is not created by noise pollution.
Diarrhoea is not created by noise pollution.
2050. _________ mixed with diesel reduces carbon monoxide emissions up to 50%.
A. Methanol
B. Alcohol
C. Ethanol
D. Phenol
✅ The correct answer is option C.
Ethanol mixed with diesel reduces carbon monoxide emissions up to 50%.
Ethanol mixed with diesel reduces carbon monoxide emissions up to 50%.