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41
Monazite is an ore of
Discuss
Answer & Solution
Answer: Option C
Solution:
Monazite is an ore of Thorium. Monazite is a rare phosphate mineral with a chemical composition of (Ce, La, Nd, Th) (PO4, SiO4). It usually occurs in small isolated grains, as an accessory mineral in igneous and metamorphic rocks such as granite, pegmatite, schist, and gneiss.
42
The location of a cement industry is mostly based on ________.
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Answer & Solution
Answer: Option D
Solution:
The location of a cement industry is mostly based on availability of raw materials. A significant factor which aids the growth of this sector is the ready availability of the raw materials for making cement, such as limestone and coal.
43
Wheat and rice in China are cultivated in
Discuss
Answer & Solution
Answer: Option A
Solution:
Wheat and rice in China are cultivated in Lower Yangtse Basin. Paddy rice is the major grain crop in China, grown mainly in the Yangtze River valley and southern China, and on the Yunnan-Guizhou Plateau. The output of wheat accounts for slightly more than one fifth of the total output of grain; it is planted throughout China but mainly on the North China Plain.
44
What is the main natural cause of disruption of road in hilly areas?
Discuss
Answer & Solution
Answer: Option A
Solution:
Landslides occur naturally as the mass of earth collapses from the mountain. Hence it becomes cause of disruption of roads in hilly areas.
45
Coniferous forests are in the region of ________
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Answer & Solution
Answer: Option B
Solution:
Coniferous forests are in the region of low rainfall and very low temperature throughout the year. Precipitation in coniferous forests varies from 300 to 900 mm annually, with some temperate coniferous forests receiving up to 2,000 mm. The amount of precipitation depends on the forest location. In the northern boreal forests, the winters are long, cold and dry, while the short summers are moderately warm and moist.
46
What does the machine tool industry produce?
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Answer & Solution
Answer: Option C
Solution:
The machine tool industry produces machines which can be used by other industries for the production of their finished goods.
47
Which of the following minerals is obtained from placer deposits?
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Answer & Solution
Answer: Option B
Solution:
Tin minerals is obtained from placer deposits. Placer deposits are loose unconsolidated and semi-consolidated materials. It forms by surface weathering, erosion of the primary rocks, transportation and concentration of valuable minerals.
48
Which of the following statements is correct?
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Answer & Solution
Answer: Option B
Solution:
It is actually ‘a sea of grasses’. The prairies cover parts of the United States of America and parts of Canada. The Rocky Mountains bound them in the West. The Great Lakes cover them in the east. The tributaries of Mississippi drain the prairies in the USA. On the other hand, the tributaries of the Saskatchewan Rivers drain the prairies of Canada.
49
Which of the following cyclone had devastated Bangladesh in November 2007?
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Answer & Solution
Answer: Option C
Solution:
Sidr was the tropical cyclone in Indian Ocean which devastated Bangladesh coast in 2007. It was category 5 tropical storm on Saffire- Simpson Scale.
50
Silk textiles are mainly produced in ________
Discuss
Answer & Solution
Answer: Option C
Solution:
Silk textiles are mainly produced in China and India. China continues to lead the world in silk production, followed by its next-door neighbor, India. China and India are the two leading silk producers today. The Silk industry actually began between 5,000 and 3,000 BC in China. It reached India around 140 AD. The Silk Road also facilitated the smuggling of silkworm eggs into the Mediterranean and from there into the rest of Europe.