Geography GK Questions with Answers – Page 46

Water passes through limestone along its joints and bedding planes, and slowly dissolves the rock as it goes. Limestone is a sedimentary rock made mainly of calcium carbonate.

Of the four, the Sabarmati is both the shortest river and the one with the smallest basin. The Sabarmati rises in the Aravalli hills of Rajasthan and flows about 370 km south-west through Gujarat, past Ahmedabad and Gandhinagar, into the Gulf of Khambhat.

Only statement 2 is wrong, because it reverses the date-line rule. The Earth turns 360° in 24 hours, or 15° every hour, so neighbouring standard time zones are usually one hour apart (statement 1).

By the 2011 Census, Bihar was the most densely populated State, followed by West Bengal, Kerala and Uttar Pradesh. The 2011 Census gave these densities in persons per square kilometre: Bihar 1,106, West Bengal 1,028, Kerala 860 and Uttar Pradesh 829, against a national average of 382.

Chalk is porous and lets water in, which explains why it is permeable; clay, however, is porous too, so Statement III is wrong.

The Sutlej is an antecedent river that rises in Tibet, flows through China, India and Pakistan, waters huge irrigated areas and, being a tributary, ends without forming a delta or distributaries.

In the northern winter the oceans stay warmer than the land, and that temperature contrast is what bends the isotherms.

At Chandipur beach in Balasore district of Odisha the sea pulls back several kilometres at low tide and returns at high tide, so visitors can walk on the exposed sea bed.

Dust is indeed concentrated in subtropical and temperate belts, but the reason is that these belts have more dry winds, not less.

Podzolisation is the typical soil-forming process under the cool, moist coniferous forests of the taiga. In the taiga, cold winters slow down decay, and the needles of pine, spruce and fir form an acidic litter on the ground.

The Mariana Trench lies in the western Pacific, east of the Mariana Islands and near Guam. It is the deepest known part of the world's oceans.

It is a warm current that flows south along the east coast of Australia, carrying tropical water from the Coral Sea.

Bolivia lost its coast on the Pacific to Chile in the War of the Pacific in the nineteenth century and now reaches the sea only through the ports of its neighbours, while Paraguay lies in the interior and depends on the Parana and Paraguay rivers for an outlet, which is…

The Great Artesian Basin lies below the dry interior of eastern Australia, mainly under Queensland and parts of New South Wales, South Australia and the Northern Territory, and it is the largest artesian basin in the world; water enters the porous rock where it is exposed near the Great Dividing…

The Panama Canal was opened in 1914 across the narrow isthmus of Panama, it is about eighty kilometres long and uses a system of locks and the artificial Gatun Lake, and it saves a ship sailing between New York and San Francisco the long voyage around Cape Horn at the…

The Pampas spread over the plains of Argentina and extend into Uruguay, and they are the home of wheat and alfalfa farming, of large cattle ranches called estancias and of the herdsmen known as gauchos; the grassland owes its growth to moderate rainfall and the cool season of the mid…

The Murray rises in the Snowy Mountains of the Great Dividing Range and, with its long tributary the Darling, drains the south-eastern interior of Australia; the basin is the country's chief farming region for wheat, fruit and sheep, and it is supported by the Snowy Mountains water scheme and by…

The Great Barrier Reef stretches for over two thousand kilometres in the Coral Sea along the north-eastern coast of Queensland, is the largest coral reef system in the world, and was placed on the list of World Heritage sites in 1981; the warm shallow tropical water of the continental shelf…

Death Valley lies in eastern California within the Mojave desert region and its floor at Badwater Basin is about eighty-six metres below sea level, the lowest land point of North America; it is also one of the hottest places recorded on the earth.

The Atacama lies in northern Chile between the Andes and the Pacific coast, and it is the driest desert in the world because the cold Peru or Humboldt current chills the air along the coast and the Andes block moisture from the Amazon side; the desert is also known for…