Geography [IAS (Admin.) IAS Mains GS Paper 1 (Geography, Art & Culture, and History)]: Questions 1 - 8 of 38

Good answer:

Factors responsible for the origin of ocean currents:

• Planetary winds: The winds cause friction on the water surface and drive the ocean water along them.
• Temperature/Density: With high temperature, the evaporation rate is higher which lowers the level of water in relation to other water bodies. Eg: The Mediterranean Sea, gets heated up, …

• An air mass is a large body of air in which vertical gradient of physical properties such as temperature, moisture, lapse rate are fairly uniform over a large are usually covering hundreds of kilometres. Air masses have characteristic temperature and moisture determined largely by the source region.
• They are thus classified on the basis of latitude …

South China has its place in the Pacific Ocean and it is one of the richest sources of natural resources such as Hydrocarbons, natural gases and ecological diversity. South China Sea issue has caught the attention of world powers due to dispute between China and the neighbouring countries over the ownership of t…

The sustainable development is a must to follow because at the present levels of consumption, the humans have already exceeded the maximum population that the earth can hold. So, the need for management of natural resources for the present and future generation is necessary to overcome the human miseries because humans ar…

The sudden movement of rock, debris, or earth along the slope is called landslide. The basic reasons of frequent landslides in Himalayas are natural causes, anthropogenic causes, and tectonic activity.

Natural causes:

• Landslides are generally associated with natural calamities like earthquake, volcanic eruptions,…

With an aim to increase the manufacturing, cheaper and environment friendly methods are required to transport those goods. For this, inland water transport can be beneficial. But there are problems too.

Problems:

• Navigation can cause increase in oil spills and pollution impacting the wildlife adversely.
• Most of our transportatio…

• Flood may be considered as a natural calamity but nowadays the blame for flood cannot be stacked only on to the nature because unplanned and uncontrolled development also paves way to such natural disasters.

• Blocking of natural drainage and natural path of water because of unplanned construction will lead to floo…

• With increase in drought conditions in semi-arid areas of India, micro watershed development has become a necessity.
• A river basin is the region of collection of water within the water divide, which is to be drained.
• If we zoom-in, then the basin would consist of a number of water divided drained by tributaries, streams, rivulets …