Geography GK Questions with Answers – Page 38

Salt weathering breaks rock by the physical pressure of growing salts, so it is a form of physical (mechanical) weathering, not chemical weathering.

A polje is a very large, flat-floored depression in limestone country, often several kilometres long, far bigger than the other karst hollows.

Statement 1 is right, but statement 2 has the date change the wrong way round. The Earth turns 360° in 24 hours, so every 15° of longitude means one hour of time.

The Umaria coalfield lies in the Umaria district of Madhya Pradesh, not in Jharkhand. Most of India's coal is Gondwana coal, found in the valleys of the Damodar, Son, Mahanadi, Godavari and Wardha rivers.

Kudremukh in Karnataka is known for iron ore, not bauxite, so this pair is wrong. The Kudremukh hills in the Western Ghats of Chikkamagaluru district hold large deposits of magnetite iron ore.

The islands get most of their rain from the south-west monsoon, from about May to September, with more from the north-east monsoon later; March and April are among the driest months.

Fronts bring abrupt, not slow, changes in weather, so statement 1 is wrong while 2 and 3 are right. A front is the boundary zone where two air masses of different temperature and density meet, mostly in the middle latitudes.

In India's land-use classification, land left uncultivated for more than five years is recorded as culturable waste land. India's land records divide area into nine categories.

Bandarpunch feeds the Yamuna, Bara Shigri the Chenab and Siachen the Nubra; pairs 3 and 5 are wrong. The Yamunotri glacier, the source of the Yamuna, lies on the western slopes of the Bandarpunch massif in Uttarakhand.

A strong solar storm disturbs the Earth's magnetic field and upper atmosphere, which hits electrical and radio systems, but it cannot cause tsunamis or forest fires.

Aleppo is in Syria and Mazar-i-Sharif is in Afghanistan; Kirkuk and Mosul are both in Iraq. Aleppo, in north-western Syria, is one of the oldest continuously inhabited cities in the world, and its old city with the citadel is a UNESCO World Heritage Site.

India has been the world's largest rice exporter every year since 2011-12, well ahead of Thailand and Vietnam. India ships both basmati rice, mainly to West Asia, Europe and North America, and non-basmati rice, mainly to Africa and South and South-East Asia.

Albania lies on the Adriatic, Kazakhstan on the Caspian and Morocco on the Mediterranean. The Adriatic Sea separates Italy from the Balkan coast of Slovenia, Croatia, Bosnia and Herzegovina, Montenegro and Albania.

Seasons happen only because the Earth's axis is tilted to the plane of its orbit. The Earth's equatorial plane is inclined at about 23.5 degrees to the plane of its orbit, so its axis makes an angle of about 66.5 degrees with that plane.

Sudan, often called North Sudan after South Sudan separated in 2011, has no coast on the Mediterranean Sea. Sudan lies south of Egypt in north-east Africa.

The horizontal distance from one crest to the next, or from one trough to the next, is the wavelength. Ocean waves are mostly made by wind blowing over the sea surface.

Salinity is the quantity of dissolved salts in a kilogram of sea water, expressed in parts per thousand, and isohalines map its distribution; the open ocean averages about 35 parts per thousand, while enclosed seas with high evaporation such as the Red Sea are far saltier and seas fed by…

The earth's orbit is an ellipse, so its distance from the sun changes through the year; at perihelion, about 3 January, the earth is nearest the sun, which is why the northern winter half of the year is slightly shorter than the summer half.

A contour, whose technical name is isohypse, joins all points standing at the same height above sea level and is the chief means of showing relief on a topographical sheet; contours drawn close together mean a steep slope, contours far apart a gentle slope, and contours that merge indicate a…

In Alfred Weber's least-cost theory of industrial location, isodapanes are drawn through all points at which the total transport cost, for assembling the raw materials and for distributing the finished product, is the same; the innermost isodapane marks the area of least total cost, where the plant should be sited.