The crude Birth Rate is defined as:
Answer: D
The crude birth rate is the number of births per thousand population in a year.
It is called crude because it takes no account of the age or sex composition of the population, which is why two countries with the same fertility can show different crude rates. India's is now around 19 per thousand.
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The instrument which measures the intensity of solar radiation is called:
Answer: C
The instrument is a solarimeter, also called a pyranometer.
It measures the solar radiation falling on a horizontal surface, in watts per square metre, usually by the temperature difference between blackened and reflective sensors under a glass dome. Barometers measure air pressure.
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The Earth's core is made up of very heavy material mostly constituted by:
Answer: C
The core is chiefly nickel and iron.
It is often called the NiFe zone for that reason. The outer core is liquid and its convection generates the earth's magnetic field; the inner core, under still greater pressure, is solid despite being hotter.
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The drainage originating in the Himalayan mountain complex consists of how many distinct drainage systems of the Indian subcontinent?
Answer: B
There are three distinct Himalayan drainage systems.
They are the Indus, the Ganga and the Brahmaputra. All three rise in or near Tibet, and together they drain the whole northern plain, carrying the silt that makes it the most fertile region in the country.
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The Richter scale on which intensity/ magnitude of a quake is measured was developed in:
Answer: C
The Richter scale was developed in 1935.
Charles Richter devised it at the California Institute of Technology with Beno Gutenberg. It is logarithmic: each whole number is a tenfold increase in wave amplitude and about thirty-two times the energy.
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Monpa, Daffla , Abor, Mishmi , Nishi and Nagas are the prominent tribal communities found in:
Answer: D
They are found in Arunachal Pradesh.
The state has the largest number of recognised tribes in India, some twenty-six major ones. The Monpa are Buddhists of Tawang; the Nishi are the most numerous; and the Adi, Mishmi and Naga groups occupy the eastern districts.
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Saar is a famous field in:
Answer: D
The Saar is in Germany.
The Saar basin in the south-west, near the French border, is a major coalfield and was long the heart of German iron and steel. Its ownership was disputed between France and Germany through much of the twentieth century.
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Which is the largest island of India?
Answer: B
Correct answer: Middle Andaman
Middle Andaman is the largest island of India by area, part of the Andaman group in the Bay of Bengal. The Andaman and Nicobar Islands form a chain of over five hundred islands, of which only a few dozen are inhabited. They are the exposed peaks of a submarine mountain range continuing the Arakan Yoma of Myanmar, and they lie closer to Indonesia and Thailand than to the Indian mainland. Great Nicobar is the southernmost and carries Indira Point, the southernmost point of India. Majuli in the Brahmaputra is the largest river island in India and among the largest in the world, though it has shrunk greatly through erosion; it became the first island to be constituted a district in 2016. India’s other island group is Lakshadweep in the Arabian Sea, made of coral atolls and reefs rather than of rock, and the smallest union territory by area.
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Which of the following has a potential for harnessing of tidal energy in India?
Answer: A
The Gulf of Cambay has the best tidal potential.
Its funnel shape amplifies the tide to a range of about 11 m, among the highest in the world; the Gulf of Kutch and the Sunderbans follow. Tidal power needs a large range within a narrow basin, which the other options do not offer.
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Valley of Flowers National Park is found on the mountain of-
Answer: A
The Valley of Flowers lies on Nanda Devi.
It is in Chamoli district of Uttarakhand, in the Nanda Devi Biosphere Reserve, and was inscribed as a UNESCO World Heritage site in 1988. The alpine meadow blooms between July and September; the botanist Frank Smythe stumbled on it in 1931.
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