A. Beaufort scale
B. Richter scale
C. Mohs scale
D. Joules
✅ The correct answer is option B.
The intensity of earthquake is measured in Richter scale.
The intensity of earthquake is measured in Richter scale.
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.
2152. When both partners are affected negatively the nature of interaction is
A. commensalism
B. competition
C. predation
D. amensalism
✅ The correct answer is option B.
When both partners/components are affected negatively, the nature of the interaction is competition. Competition is an interaction between organisms or species in which the fitness of one is lowered by the presence of another.
When both partners/components are affected negatively, the nature of the interaction is competition. Competition is an interaction between organisms or species in which the fitness of one is lowered by the presence of another.
2153. All are physical pollutants except
A. heat
B. sound
C. radiations
D. soot
✅ The correct answer is option D.
All are physical pollutants except soot.
All are physical pollutants except soot.
2154. Algal bloom results in
A. Global warming
B. Salination
C. Eutrophication
D. Biomagnification
✅ The correct answer is option C.
Algal bloom results in eutrophication.
Algal bloom results in eutrophication.
2155. Which of the following is least likely to contain an oil trap?
A. an anticline
B. fault
C. natural stratigraphy
D. syncline
✅ The correct answer is option D.
Syncline is least likely to contain an oil trap.
Syncline is least likely to contain an oil trap.
2156. The most endangered ecosystem in India
A. Shola forest ecosystem
B. Evergreen forest ecosystem
C. Pond ecosystem
D. Tundra Ecosystem
✅ The correct answer is option B.
The most endangered ecosystem in India is evergreen forest ecosystem.
The most endangered ecosystem in India is evergreen forest ecosystem.
2157. What is lotic habitat?
A. Standing or still water habitat
B. Marine habitat
C. Running water habitat
D. Stagnant water
✅ The correct answer is option C.
Lotic refers to flowing water, from the Latin lotus, past participle of lavere, to wash. Lotic ecosystems can be contrasted with lentic ecosystems, which involve relatively still terrestrial waters such as lakes and ponds. Together, these two fields form the more general study area of freshwater or aquatic ecology.
Lotic refers to flowing water, from the Latin lotus, past participle of lavere, to wash. Lotic ecosystems can be contrasted with lentic ecosystems, which involve relatively still terrestrial waters such as lakes and ponds. Together, these two fields form the more general study area of freshwater or aquatic ecology.
2158. Sunlight that bounces off a surface is said to be ________ from the surface.
A. Radiated
B. Absorbed
C. Emitted
D. Reflected
✅ The correct answer is option D.
Sunlight that bounces off a surface is said to be reflected from the surface.
Sunlight that bounces off a surface is said to be reflected from the surface.
2159. Meteorology is the study of:
A. Landforms
B. The oceans
C. The atmosphere
D. Outer space
✅ The correct answer is option C.
Meteorology is the scientific study of the atmosphere that focuses on weather processes and forecasting. Meteorological phenomena are observable weather events which illuminate and are explained by the science of meteorology. Those events are bound by the variables that exist in Earth’s atmosphere.
Meteorology is the scientific study of the atmosphere that focuses on weather processes and forecasting. Meteorological phenomena are observable weather events which illuminate and are explained by the science of meteorology. Those events are bound by the variables that exist in Earth’s atmosphere.
2160. Green House effect is caused by
A. Increase in CO2
B. Increase in O2
C. Decrease in O2
D. Decrease in CO2
✅ The correct answer is option A.
Greenhouse effect, a warming of Earth’s surface and troposphere (the lowest layer of the atmosphere) caused by the presence of water vapour, carbon dioxide, methane, and certain other gases in the air. Of those gases, known as greenhouse gases, water vapour has the largest effect.
Greenhouse effect, a warming of Earth’s surface and troposphere (the lowest layer of the atmosphere) caused by the presence of water vapour, carbon dioxide, methane, and certain other gases in the air. Of those gases, known as greenhouse gases, water vapour has the largest effect.