General Knowledge MCQs
Topic Notes: General Knowledge
MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
81
Which country possesses the largest reserves of Natural Gas?
Answer:
Russia
Russia holds the world's largest proven natural gas reserves, primarily in Siberia.
82
What percentage of the Earth's water is fresh water?
Answer:
Approximately 2.5%
Only about 2.5% to 3% of Earth's water is fresh water, and most of that is locked up in glaciers and ice caps.
83
Kimberlite pipes are the primary geological source of which precious resource?
Answer:
Diamonds
[attachment_2](attachment) Kimberlite pipes are vertical volcanic structures that bring diamonds from the Earth's mantle to the surface.
84
Which forest type contains the highest level of biodiversity and biomass?
Answer:
Tropical Rainforest
Tropical rainforests hold more than half of the world's plant and animal species despite covering only a small percentage of the Earth's surface.
85
The resource 'Bitumen' is most closely associated with which type of fossil fuel deposit?
Answer:
Oil Sands (Tar Sands)
Bitumen is a heavy, viscous form of crude oil found in oil sands, most notably in the Athabasca Oil Sands in Alberta, Canada.
86
Which country is the largest producer of Uranium?
Answer:
Kazakhstan
Kazakhstan is the world's leading producer of uranium, accounting for over 40% of global supply.
87
What is the primary component of Natural Gas?
Answer:
Methane
Natural gas is a hydrocarbon gas mixture consisting primarily of methane (CH4), though it includes varying amounts of other alkanes.
88
Which region contains the majority of the world's desalination plants?
Answer:
Middle East / North Africa
Due to extreme water scarcity and abundant energy resources, the Middle East (particularly Saudi Arabia, UAE, and Israel) leads the world in desalination capacity.
89
The process of injecting liquid at high pressure into subterranean rocks to force open existing fissures and extract oil/gas is called:
Answer:
Hydraulic Fracturing (Fracking)
[attachment_1](attachment) Fracking involves injecting water, sand, and chemicals into bedrock formations to release petroleum or natural gas trapped in shale.
90
Which isotope of Uranium is the fissile material primarily used in nuclear power plants?
Answer:
Uranium-235
U-235 is the only naturally occurring fissile isotope, meaning it can sustain a nuclear chain reaction, though it makes up only about 0.7% of natural uranium.