All Categories MCQs
Topic Notes: All Categories
General Description
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
70581
Bamboo is technically classified as:
Answer:
A Grass
Bamboo is a giant woody grass in the Poaceae family and is one of the fastest-growing plants in the world.
70582
What is the main source of Iodine production globally?
Answer:
Caliche ore in Chile
While iodine can be found in brine and seaweed, Chile's caliche deposits (nitrate ores) are the largest commercial source.
70583
Cochineal, a natural red dye, is extracted from:
Answer:
Scale insects on cacti
Cochineal dye, used in food and cosmetics (Carmine), comes from the female cochineal insect which feeds on prickly pear cacti.
70584
Which valuable resin produced by the Lac insect is used to make shellac?
Answer:
Lac
Lac is the scarlet resinous secretion of a number of species of lac insects, processed to make shellac.
70585
Peat is typically harvested from:
Answer:
Bogs and Mires
Peat is an accumulation of partially decayed vegetation forming in wetlands (bogs/mires) and is the first stage in the formation of coal.
70586
The 'Rance Tidal Power Station', the world's first tidal power plant, is located in:
Answer:
France
Opened in 1966, the Rance Tidal Power Station in Brittany, France, was the first of its kind to generate electricity from tidal movements.
70587
Agar, a gelatinous substance used in labs and food, is derived from:
Answer:
Red Algae (Seaweed)
Agar is obtained from the cell walls of some species of red algae and is used as a culture medium for bacteria and as a food thickener.
70588
Which country is the largest producer of Rice?
Answer:
China
China is the world's largest producer of rice, a staple food for a large portion of the global population.
70589
Asbestos was historically prized for which property before its health risks were fully understood?
Answer:
Fire resistance and durability
Asbestos fibers are resistant to heat, fire, and chemical corrosion, making them popular in insulation and fireproofing before being linked to lung diseases.
70590
Gypsum is the primary ingredient in which construction material?
Answer:
Drywall (Plasterboard)
Gypsum (Calcium sulfate dihydrate) is the main component of plaster and drywall.