241. Which of the following is the most important raw material for generation of power in India?
1. Mineral Oil
2. Natural Gas
3. Uranium
4. Coal
Option “4” is correct. Coal is the most important raw material for generation of power in India.
242. A broad, low embankment built up along the banks of a river channel during floods is called-
1. Delta
2. Levee
3. Flood Plain
4. Dune
Option “2” is correct. It is an embankment built to prevent the overflow of a river. It is a ridge of sediment deposited naturally alongside a river by overflowing water.
243. The tides in the sea are primarily due to-
1. The atmospheric effect of the Earth
2. The gravitational effect of Venus on the Earth
3. The gravitational effect of the mars on the Earth
4. The gravitational effect of the Moon on the Earth
Option “4” is correct.
The tides in the sea are primarily due to the gravitational effect of the Moon on the Earth.
244. What process takes place during the youthful stage of a river?
1. Valley widening
2. River rejuvenating
3. Valley deepening
4. Meandering
Option “3” is correct. A valley formed by flowing water, is usually V-shaped. The exact shape will depend on the characteristics of the stream flowing through it.
245. “Sirius”, the brightest star outside solar system, is also called ______.
1. Cat star
2. Dog star
3. Fox star
4. Lion star
Option “2” is correct. Sirius is also known as the Dog Star. It is the brightest star outside our Solar System.
246. In terms of size, Jupiter ranks number ___ in our Solar System.
1. 1
2. 2
3. 3
4. 4
Option “1” is correct. Jupiter is the fifth planet from the Sun and the largest in the Solar System. It is a giant planet with a mass one-thousandth that of the Sun.
247. Majuli, the largest river island in the world is located in which among the following states of India?
1. Assam
2. Manipur
3. Nagaland
4. Tripura
Option “1” is correct. Majuli the largest river island of the world is on Brahmaputra river in state of Assam.
248. Pagladia Dam Project is located in which state?
1. Arunachal Pradesh
2. Sikkim
3. Assam
4. West Bengal
Option “3” is correct. Pagladia dam is situated in state of Assam.
249. Which of the following continents has the smallest land area?
1. Antarctica
2. Australia
3. North America
4. South America
Option “2” is correct. Australia with 2,967,909 square miles (7,686,884 square km) total area, is the smallest Continent.
250. The Yellow river passes through which country?
1. Russia
2. China
3. USA
4. Australia
Option “2” is correct. Yellow river passes through China.
