location

Question 1

1. where is sabang port located

Answer 1

1. near andaman and nicobar

Question 2

famous gold mines in india

Answer 2

Famous Gold Mines in India: Kolar Gold Field(Karnataka), Hutti Gold Field (Karnataka), and Ramgiri Gold Field(Andhra Pradesh) are the most important goldfields

Question 3

Consider the following statements regarding the Sargasso Sea:

1. It is located in the transition zone of the trade winds and the westerlies.
2. This zone is characterized by the subsidence of air.
3. It records the highest salinity of the Atlantic ocean.

Answer 3

It is located in the transition zone of the trade winds (N.E.Trades) and the westerlies. Hence, statement 1 is correct.
This zone is characterized by the subsidence of air from above and the resultant anticyclonic condition
It records the highest salinity of the Atlantic Ocean due to high temperature and evaporation. The salinity is also increased because of no mixing of the water of the sargasso sea with the remaining water of the North Atlantic Ocean.

Question 4

Consider the following pairs:

City        River

1. Mangalore: Netravati
2. Nagpur: Nag
3. Vadodara: Mahisagar

Answer 4

Netravati river flows south of Mangalore city.
Earlier it was known as the Bantawal river.
The Nag river originates from the Ambazari Lake in west Nagpur.
Major Tributaries - Pioli river.
Endpoint - confluence with Kanhan River.
Kanhan river is a tributary of Wainganga river.
Mahisagar river (Mahi):
It originates from the northern slopes of Vindhyas in the Dhar district of Madhya Pradesh.
It drains into the Arabian Sea through the Gulf of Khambhat.
Vadodara is the only important urban centre in the basin.

Question 5

Amery Ice Shelf, the expansion of which is predicted to have a major impact on global climate, is located in

(a) Antarctica
(b) Artic
(c) Iceland
(d) Greenland

Answer 5

Amery Ice Shelf is one of the largest glacier drainage basins in the world, located on the east coast of Antarctica.
Ice Shelves: The floating sheets of ice are called ‘ice shelves. It connects a glacier to the landmass. It plays a significant role in maintaining the stability of a glacier. The following are the important parameters for the balancing of a glacier:
Mass Balance: The ice sheet mass balance of a glacier is the net balance between the mass gained by snow deposition and the loss of mass by melting.
Sea stratification: It occurs when water masses with different properties - salinity, oxygenation, density, temperature - form layers that act as barriers to water mixing.
Deep-ocean bottom water formation: It is formed by the cooling and sinking of surface water at high latitudes.

Question 6

Consider the following statement about Helium in India:

India has maximum reserves of Helium in the Dharwar Plateau.
Almost half of the demand for Helium in India is met by imports from China.

Answer 6

he Federal Helium Reserve which is the major helium reserve of the USA is set to close down production in 2021, and scientists are looking for new reserves to replace it. India imports helium for its needs and in which the major chunk is from the USA
India’s Rajmahal volcanic basin in Jharkhand is the storehouse of helium trapped for billions of years, since the very birth of Earth from the Sun