Olympiad Test Level 2: Indian Geography- 1 - Class 7 MCQ

Explanation:
The Indian sub-continent experiences comparatively milder winters as compared to Central Asia due to the following factors:
The Himalayas:
- The Himalayas act as a physical barrier that prevents the cold winds from Central Asia from reaching the Indian sub-continent.
- The mountains block the cold air masses and create a barrier for the cold winds, resulting in milder winters in the Indian sub-continent.
Ocean currents:
- The surrounding seas, such as the Arabian Sea and the Bay of Bengal, have a moderating effect on the climate of the Indian sub-continent.
- The warm ocean currents influence the temperature and bring relatively warmer air to the region, contributing to milder winters.
The Tropic of Cancer:
- The Indian sub-continent lies close to the Tropic of Cancer, which means it receives more direct sunlight throughout the year.
- The higher angle of the sun's rays results in warmer temperatures, even during the winter season.
Therefore, the combination of the Himalayas, ocean currents, and the position of the Indian sub-continent near the Tropic of Cancer all contribute to milder winters compared to Central Asia.

The Andaman and Nicobar Islands and submerged parts of mountain ranges are called Arakan Yoma.

Geographical Terms related to a narrow waterway:
- Strait: A naturally formed, narrow, typically navigable waterway that connects two larger bodies of water. It is a narrow passage of water that lies between two land masses.
- Peninsula: A landmass that is surrounded by water on three sides. It is connected to the mainland by an isthmus.
- Gulf: A large area of sea or ocean that is partially enclosed by land. It is typically larger than a bay and has a wide mouth.
- Island: A piece of land that is surrounded by water on all sides. It is smaller than a continent and larger than a rock or a reef.
Explanation:
A strait is the correct geographical term that fits the description of a naturally formed, narrow, typically navigable waterway that connects two larger bodies of water. It is a narrow passage of water that lies between two land masses and allows for navigation between larger bodies of water. Examples of famous straits include the Strait of Gibraltar, which connects the Atlantic Ocean to the Mediterranean Sea, and the Strait of Malacca, which connects the Indian Ocean to the South China Sea.

It is because of large size and extent among the peninscular rivers.

It is because of the moderating effect of the sea

Analysis:
To determine the correct sequence from youngest to oldest of the given mountain ranges, we need to consider the geological history of these ranges.
Himalayas:
- The Himalayas are the youngest mountain range out of the given options.
- They were formed due to the collision between the Indian and Eurasian tectonic plates.
- This collision began around 50 million years ago and is still ongoing, resulting in the ongoing growth of the Himalayas.
Vindhyas:
- The Vindhyas are older than the Himalayas but younger than the Western Ghats.
- They are a range of hills in central India and were formed during the Precambrian era, which dates back to around 1.7 billion years ago.
Western Ghats:
- The Western Ghats are older than the Vindhyas but younger than the Deccan Trap.
- They are a mountain range along the western coast of India and were formed around 150-60 million years ago during the breakup of the supercontinent Gondwana.
Deccan Trap:
- The Deccan Trap is the oldest mountain range out of the given options.
- It is a large volcanic province in west-central India and was formed around 66 million years ago during the Cretaceous-Paleogene extinction event.
Sequence from youngest to oldest:
Based on the above information, the correct sequence from the youngest to the oldest of the given mountain ranges is:
1. Himalayas
2. Vindhyas
3. Western Ghats
4. Deccan Trap
Therefore, option A: "Himalayas, Vindhyas, Western Ghats, Deccan Trap" is the correct sequence.

The Tropic of Cancer passes through Meghalaya and Manipur.

The answer is C: Brahmaputra plains.
Explanation:
The northern plain in India can be divided into four regions based on relief features. These regions are:
1. Bhabar:
- It is the narrowest and the northernmost part of the northern plain.
- It is a narrow belt of about 8 to 10 km width.
- It is made up of pebbles and boulders brought down by the rivers from the Himalayas.
- The streams disappear in this region as the water seeps through the porous soil.
2. Terai:
- It lies south of the Bhabar region.
- It is a marshy and swampy region.
- It is covered with thick forests.
- It is prone to flooding during the rainy season.
3. Bhangar:
- It lies to the south of the Terai region.
- It is the largest part of the northern plain.
- It is an older alluvial plain.
- It is made up of older alluvium and is elevated in nature.
- It is not prone to flooding.
4. Khadar:
- It lies to the south of the Bhangar region.
- It is a newer alluvial plain.
- It is made up of newer alluvium.
- It is prone to flooding and is very fertile.
The given plain that forms the eastern part of the northern plain and can be divided into Bhabar, Terai, Bhangar, and Khadar regions is the Brahmaputra plains.

Temperate evergreen forests receives heavy rainfall throughout the year.

Correct Descending Order of Rice Producing States in India:
The correct descending order of rice producing states in India is as follows:
1. West Bengal: West Bengal is the largest rice-producing state in India. It has favorable climatic conditions and fertile soil, which contribute to its high rice production.
2. Uttar Pradesh: Uttar Pradesh ranks second in rice production in India. The state has a large agricultural area and favorable weather conditions, which support rice cultivation.
3. Punjab: Punjab is known as the "Granary of India" and is a major contributor to rice production. Although it ranks lower than West Bengal and Uttar Pradesh in terms of total rice production, it is still a significant rice-producing state.
4. Andhra Pradesh: Andhra Pradesh ranks fourth in rice production. The state has a significant agricultural sector and favorable conditions for rice cultivation.
Therefore, the correct descending order of rice producing states in India is D: West Bengal, Uttar Pradesh, Punjab, and Andhra Pradesh.