A. Zoos
B. Botanical Gardens
C. National Parks
D. Sanctuaries
✅ The correct answer is option C.
Animals and plants are best protected in national parks.
Animals and plants are best protected in national parks.
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.
2062. The ocean covers ________ percentage of Earth’s surface.
A. 51%
B. 61%
C. 71%
D. 91%
✅ The correct answer is option C.
The oceans cover 71 percent of the Earth’s surface and contain 97 percent of the Earth’s water. Less than 1 percent of the Earth’s water is fresh water, and 2-3 percent is contained in glaciers and ice caps. The oceans contain 99 percent of the living space on the planet.
The oceans cover 71 percent of the Earth’s surface and contain 97 percent of the Earth’s water. Less than 1 percent of the Earth’s water is fresh water, and 2-3 percent is contained in glaciers and ice caps. The oceans contain 99 percent of the living space on the planet.
2063. Chemical reactions triggered by ________ transforms the organic material into hydrocarbons.
A. solar energy
B. hydroelectric
C. elevated temperatures
D. decomposition
✅ The correct answer is option C.
Chemical reactions triggered by elevated temperatures transforms the organic material into hydrocarbons.
Chemical reactions triggered by elevated temperatures transforms the organic material into hydrocarbons.
2064. An ecosystem must have continuous external source of
A. minerals
B. energy
C. food
D. All of the above
✅ The correct answer is option B.
An ecosystem must have continuous external source of energy.
An ecosystem must have continuous external source of energy.
2065. Coral reefs in India can be seen in
A. Himalayan region
B. Andaman and Nicobar Islands
C. Uttarpradesh
D. Maharashtra
✅ The correct answer is option B.
Coral reef in India found at Lakshadweep island,Gulf of Kutch,Gulf of Mannar and Andaman Islands, marine species and creatures like Dolphins, Sea-horse, Sea-cucumber, Sea-anemone,Dugong and sea turtle are the few wild animals of coral reefs found in India.
Coral reef in India found at Lakshadweep island,Gulf of Kutch,Gulf of Mannar and Andaman Islands, marine species and creatures like Dolphins, Sea-horse, Sea-cucumber, Sea-anemone,Dugong and sea turtle are the few wild animals of coral reefs found in India.
2066. Trichodermaharzianum has proved a useful microorganism for
A. reclamation of wastelands
B. bioremediation of contaminated soils
C. biological control of soil-borne plant pathogens
D. gene transfer in higher plants
✅ The correct answer is option B.
Trichoderma harzianum has proved a useful microorganism for bioremediation of contaminated soils.
Trichoderma harzianum has proved a useful microorganism for bioremediation of contaminated soils.
2067. Which of the following has a wavelength shorter than that of violet light?
A. Green light
B. Blue light
C. Infrared radiation
D. Red light
✅ The correct answer is option E.
Visible light is simply electromagnetic radiation in a range of wavelengths that our eyes are sensitive to. Visible wavelengths range from 0.0007 milimeters for red light, through orange, yellow, green, and blue, to 0.0004 milimeters for violet light. Ultraviolet is shorter wavelengths than violet.
Visible light is simply electromagnetic radiation in a range of wavelengths that our eyes are sensitive to. Visible wavelengths range from 0.0007 milimeters for red light, through orange, yellow, green, and blue, to 0.0004 milimeters for violet light. Ultraviolet is shorter wavelengths than violet.
2068. Scientists are able to determine the air temperature in the thermosphere by:
A. Using radiosondes
B. Using temperature probes in orbiting satellites
C. Observing changes in satellite orbits
D. Direct measurements in manned, high-altitude balloons
✅ The correct answer is option C.
Scientists are able to determine the air temperature in the thermosphere by observing changes in satellite orbits.
Scientists are able to determine the air temperature in the thermosphere by observing changes in satellite orbits.
2069. What is lentic habitat ?
A. Running water habitat
B. Standing or still water habitat
C. Marine habitat
D. None
✅ The correct answer is option B.
A lentic ecosystem entails a body of standing water, ranging from ditches, seeps, ponds, seasonal pools, basin marshes and lakes. Deeper waters, such as lakes, may have layers of ecosystems, influenced by light. Ponds, due to their having more light penetration, are able to support a diverse range of water plants.
A lentic ecosystem entails a body of standing water, ranging from ditches, seeps, ponds, seasonal pools, basin marshes and lakes. Deeper waters, such as lakes, may have layers of ecosystems, influenced by light. Ponds, due to their having more light penetration, are able to support a diverse range of water plants.
2070. North American grassland are called
A. Pampas
B. Prairies
C. Savannah
D. None
✅ The correct answer is option B.
In North America temperate grasslands are called prairies.
In North America temperate grasslands are called prairies.