DAY – 16: Insights Self Study Guide for Prelims + Mains – 2015

Solution: d)

Some important mountain peaks in Andaman and Nicobar islands are Saddle peak (North Andaman – 738 m), Mount Diavolo (Middle Andaman – 515 m), Mount Koyob (South Andaman – 460 m) and Mount Thuiller (Great Nicobar – 642 m).

Solution: b)

There is a general understanding among the countries of the world to select the standard meridian in multiples of 7°30′ of longitude. That is why 82°30′ E has been selected as the ‘standard meridian’ of India. Indian Standard Time is ahead of Greenwich Mean Time by 5 hours and 30 minutes.

UTC is one of several closely related successors to Greenwich Mean Time (GMT). For most purposes, UTC is considered interchangeable with GMT, but GMT is no longer precisely defined by the scientific community.

http://www.timeanddate.com/time/zones/ist

https://en.wikipedia.org/wiki/Coordinated_Universal_Time

NCERT Class XI, India Physical Environment, Chapter – 1

Solution: c)

http://www.waterencyclopedia.com/A-Bi/Bays-Gulfs-and-Straits.html

https://en.wikipedia.org/wiki/List_of_isthmuses

NCERT Class XI, India Physical Environment, Chapter – 1

Solution: a)

Ten Degree Channel separates Andaman from Nicobar islands.

http://www.ananyahotels.com/images/MAPandaman.jpg

NCERT Class XI, India Physical Environment, Chapter – 1

Solution: b)

The northern boundary of the Peninsular Block may be taken as an irregular line running from Kachchh along the western flank of the Aravali Range near Delhi and then roughly parallel to the Yamuna and the Ganga as far as the Rajmahal Hills and the Ganga delta. Apart from these, the Karbi Anglong and the Meghalaya Plateau in the northeast and Rajasthan in the west are also extensions of this block.

NCERT Class XI, India Physical Environment, Chapter – 2

Zafran is a local variety of saffron.

NCERT Class XI, India Physical Environment, Chapter – 2

Solution: d)

Srinagar is located on Jhelum River.

Dal Lake is not a Ramsar site.

NCERT Class XI, India Physical Environment, Chapter – 2

https://en.wikipedia.org/wiki/List_of_Ramsar_sites_in_India

Solution: b)

An important aspect of the Arunachal Himalayas is the numerous ethnic tribal community inhabiting in these areas. Some of the prominent ones from west to east are the Monpa, Daffla, Abor, Mishmi, Nishi and the Nagas.

NCERT Class XI, India Physical Environment, Chapter – 2

Solution: d)

The Barak River flows through Manipur, Mizoram, and Assam

Tipaimukh Dam is a proposed embankment dam on the river Barak in Manipur

NCERT Class XI, India Physical Environment, Chapter – 2

Solution: b)

Bhabar is a narrow belt ranging between 8-10 km parallel to the Shiwalik foothills at the break-up of the slope. As a result of this, the streams and rivers coming from the mountains deposit heavy materials of rocks and boulders, and at times, disappear in this zone. South of the Bhabar is the Tarai belt, with an approximate width of 10-20 km where most of the streams and rivers re-emerge without having any properly demarcated channel, thereby, creating marshy and swampy conditions known as the Tarai. This has a luxurious growth of natural vegetation and houses a varied wild life.

NCERT Class XI, India Physical Environment, Chapter – 2

https://en.wikipedia.org/wiki/Terai#Economy

Solution: a)

Vembanad (Vembanad Kayal or Vembanad Kol) is the longest lake in India,[1] and the largest lake in the state of Kerala. It is also counted as one of the largest lakes in India. Spanning several districts in the state of Kerala, it is known as Punnamada Lake in Kuttanad, Kochi Lake in Kochi. The Nehru Trophy Boat Race is conducted in a portion of the lake.

NCERT Class XI, India Physical Environment, Chapter – 2

Solution: b)

Important Drainage Patterns

• The drainage pattern resembling the branches of a tree is known as “dendritic” the examples of which are the rivers of northern plain.
• When the rivers originate from a hill and flow in all directions, the drainage pattern is known as ‘radial’. The rivers originating from the Amarkantak range present a good example of it.
• When the primary tributaries of rivers flow parallel to each other and secondary tributaries join them at right angles, the pattern is known as ‘trellis’.
• When the rivers discharge their waters from all directions in a lake or depression, the pattern is know as ‘centripetal’.

NCERT Class XI, India Physical Environment, Chapter – 3

Solution: d)

Lake Manasarovar is near the source of the Sutlej, which is the easternmost large tributary of the Indus. Nearby are the sources of the Brahmaputra River, the Indus River, and the Ghaghara, an important tributary of the Ganges.

NCERT Class XI, India Physical Environment, Chapter – 3

Solution: b)

Kerala has a narrow coastline. The longest river of Kerala, Bharathapuzha rises near Annamalai hills. It is also known as Ponnani. It drains an area of 5,397 sq. km. Compare its catchment area with that of the Sharavati river of Karnataka. The Periyar is the second largest river of Kerala. Its catchment area is 5,243 sq. km. You can see that there is a marginal difference in the catchment area of the Bhartapuzha and the Periyar rivers. Another river of Kerala worth mentioning is the Pamba river which falls in the Vemobanad lake after traversing a course of 177 km.

https://en.wikipedia.org/wiki/Pamba_River

NCERT Class XI, India Physical Environment, Chapter – 3

Solution: a)

The Inter Tropical Convergence Zone (ITCZ) is a low pressure zone located at the equator where trade winds converge, and so, it is a zone where air tends to ascend. In July, the ITCZ is located around 20°N-25°N latitudes (over the Gangetic plain), sometimes called the monsoon trough. This monsoon trough encourages the development of thermal low over north and northwest India. Due to the shift of ITCZ, the trade winds of the southern hemisphere cross the equator between 40° and 60°E longitudes and start blowing from southwest to northeast due to the Coriolis force. It becomes southwest monsoon. In winter, the ITCZ moves southward, and so the reversal of winds from northeast to south and southwest, takes place. They are called northeast monsoons.

NCERT Class XI, India Physical Environment, Chapter – 4

Solution: b)

• Mango Shower : Towards the end of summer, there are pre-monsoon showers which are a common phenomena in Kerala and coastal areas of Karnataka. Locally, they are known as mango showers since they help in the early ripening of mangoes.
• Blossom Shower : With this shower, coffee flowers blossom in Kerala and nearby areas.
• Nor Westers : These are dreaded evening thunderstorms in Bengal and Assam. Their notorious nature can be understood from the local nomenclature of ‘Kalbaisakhi’, a calamity of the month of Baisakh. These showers are useful for tea, jute and rice cultivation. In Assam, these storms are known as “Bardoli Chheerha”.
• Loo : Hot, dry and oppressing winds blowing in the Northern plains from Punjab to Bihar with higher intensity between Delhi and Patna

NCERT Class XI, India Physical Environment, Chapter – 4