The average density of the outer-most layer (zone)- that is crust- of the earth is:
Answer: D
The crust averages a density of 2.8 to 3.0.
Continental crust is granitic and slightly lighter, around 2.7, while oceanic crust is basaltic and denser, about 3.0. Both are far lighter than the mantle below, at about 4.5, which is why the crust floats on it.
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The radius of earth is:
Answer: B
The earth's radius is about 6,370 km.
The equatorial radius is 6,378 km and the polar 6,357, the difference following from the flattening caused by rotation. The mean value of about 6,371 km is the one usually quoted.
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Titagarh, Amlai and Nepanagar are known for:
Answer: D
Titagarh, Amlai and Nepanagar are known for the paper industry.
Titagarh in West Bengal and Amlai in Madhya Pradesh make paper and board; Nepanagar, also in Madhya Pradesh, was set up specifically for newsprint and was for long India's only newsprint mill.
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Which of the following factors are responsible for present crisis in the jute industry in India?
1. The decline in overseas market
2. Inadequately supply of raw jute
3. Stiff competition from synthetic packing materials
Select the correct answer from the codes given below
Answer: A
All three factors are at work.
The overseas market for jute goods shrank as buyers turned to cheaper substitutes; the supply of raw jute has been irregular since much of the growing area went to East Bengal in 1947; and synthetic packing material - polypropylene sacking above all - is lighter and cheaper, which has been the heaviest blow of the three.
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River Damodar is a tributary of:
Answer: D
The Damodar is a tributary of the Hooghly.
It rises in the Chotanagpur plateau and joins the Hooghly below Kolkata. Its violent floods earned it the name Sorrow of Bengal, which the Damodar Valley Corporation's dams were built to control.
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The state of atmosphere in relation to its water vapour content refers to:
Answer: A
This is relative humidity.
It is the ratio of the water vapour actually present to the maximum the air could hold at that temperature, expressed as a percentage. Because warm air can hold more vapour, relative humidity falls as air is heated even when no moisture is added or removed.
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The source of the Kaveri river lies in the
Answer: B
The Kaveri rises in the Brahmagiri hills.
Its source is at Talakaveri in Kodagu district of Karnataka, on the eastern slope of the Western Ghats, and it flows some 800 km east across the peninsula to the Bay of Bengal, forming the Shivanasamudra falls and the delta at Thanjavur.
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The first tidal power plant in India is located in:
Answer: D
India's first tidal power plant is at Kandla.
It is in the Gulf of Kutch, where the funnel shape amplifies the tidal range to among the highest in the country. Tidal power needs a large range within a narrow basin, which that coast provides and most of India's does not.
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Project Tiger, one of the premier conservation efforts in the country was launched on:
Answer: D
Project Tiger was launched on 1 April 1973.
It began with nine reserves and about 18,000 sq km. The tiger population had fallen to roughly 1,800 by the early 1970s; the project now covers more than fifty reserves and the count has recovered past 3,000.
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Mahe and Yanam are the parts of the Union Territory of:
Answer: D
Mahe and Yanam belong to Puducherry.
The Union Territory is made up of four former French enclaves scattered across three states: Puducherry and Karaikal in Tamil Nadu, Mahe in Kerala and Yanam in Andhra Pradesh. They are not contiguous with one another.
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