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

Tributaries of Ganga River:
The correct answer is option A: Ganga. The Yamuna, Ghagra, Gomti, Kosi, and Son are all tributaries of the river Ganga. Here is a detailed explanation:
1. Yamuna: The Yamuna River is one of the longest and most important tributaries of the Ganga. It originates from the Yamunotri Glacier in the lower Himalayas and meets the Ganga near Allahabad.
2. Ghagra: The Ghagra River, also known as the Karnali River, is another major tributary of the Ganga. It originates in the high Himalayas in Nepal and flows through Uttar Pradesh and Bihar before joining the Ganga near Chhapra.
3. Gomti: The Gomti River is a tributary of the Ganga that flows through the state of Uttar Pradesh. It originates in the Madhogarh hills near Pilibhit and meets the Ganga at Triveni Sangam in Allahabad.
4. Kosi: The Kosi River, also known as the "Sorrow of Bihar," is a major tributary of the Ganga. It originates in Nepal and flows through Bihar before joining the Ganga near Kursela.
5. Son: The Son River is the largest southern tributary of the Ganga. It originates in the Amarkantak hills in Madhya Pradesh and flows through Uttar Pradesh, Bihar, and Jharkhand before joining the Ganga near Patna.
These tributaries play a crucial role in the hydrology and ecology of the Ganga River system. They bring significant amounts of water and sediment to the main river, contributing to its flow and nourishing the fertile plains along its banks.

Analysis:
To identify the river that does not flow into the Arabian Sea, we need to examine the given options and determine their respective destinations.

The following rivers are listed as options:
Tungabhadra: This river flows through the states of Karnataka and Andhra Pradesh in India and ultimately merges with the Krishna River, which eventually reaches the Bay of Bengal. Therefore, Tungabhadra does not flow into the Arabian Sea.
Sabarmati: This river originates in the Aravalli Range of the Udaipur district in Rajasthan, India, and flows through Gujarat. It merges with the Gulf of Khambhat, which is a part of the Arabian Sea. Therefore, Sabarmati flows into the Arabian Sea.
Mandovi: This river is located in the western state of Goa, India. It flows through the state and merges with the Arabian Sea. Therefore, Mandovi flows into the Arabian Sea.
Narmada: This river originates in the Amarkantak hills in Madhya Pradesh, India, and flows through the states of Madhya Pradesh, Maharashtra, and Gujarat. It empties into the Gulf of Khambhat, which is a part of the Arabian Sea. Therefore, Narmada flows into the Arabian Sea.
Based on the analysis, the river that does not flow into the Arabian Sea is the Tungabhadra.

Indian States/Union Territories with Maximum Mangrove Cover:
West Bengal
- West Bengal has the maximum percentage of mangrove cover in India.
- The Sundarbans, located in West Bengal, is the largest mangrove forest in the country and a UNESCO World Heritage site.
- The Sundarbans covers a vast area of around 4,000 square kilometers and is home to a rich biodiversity, including the Royal Bengal Tiger.
- The mangrove cover in West Bengal plays a crucial role in protecting the coastlines from erosion and acts as a natural barrier against cyclones and tidal waves.
Other Indian States/Union Territories:
- Gujarat: While Gujarat has a significant mangrove cover, it does not have the maximum percentage compared to West Bengal.
- Andaman and Nicobar: Andaman and Nicobar Islands have a considerable mangrove cover, but it is not the highest in the country.
- Odisha: Odisha also has a substantial mangrove cover, but it is not the maximum in India.
Therefore, the correct answer is West Bengal when considering the Indian States/Union Territories with the maximum percentage of mangrove cover in the country.

Garo Hills is a part of Meghalaya.
Explanation:
Garo Hills is a region located in the state of Meghalaya, India. It is named after the Garo tribe, which is one of the major tribes of Meghalaya. Here are some key points to understand why Garo Hills is a part of Meghalaya:
1. Meghalaya: Meghalaya is a state in northeastern India, bordered by Assam to the north and Bangladesh to the south. It is known for its scenic beauty, lush forests, and hills.
2. Garo Hills: Garo Hills is one of the three main geographical divisions of Meghalaya, along with Khasi Hills and Jaintia Hills. It is located in the western part of the state and covers an area of approximately 8,000 square kilometers.
3. Garo Tribe: The Garo tribe is the predominant tribal community residing in Garo Hills. They have their own distinct culture, language, and traditions. The Garo Hills region is home to several Garo villages and communities.
4. Geography: Garo Hills is characterized by undulating hills, dense forests, and numerous rivers. It is known for its rich biodiversity and is considered one of the biodiversity hotspots in India. The region also has several wildlife sanctuaries and national parks, such as Balpakram National Park and Nokrek National Park.
5. Economy: The economy of Garo Hills is primarily agrarian, with agriculture and horticulture being the main sources of livelihood for the people. The region is known for the cultivation of crops like rice, maize, and vegetables. The Garo Hills also have significant mineral resources, including coal and limestone.
In conclusion, Garo Hills is a part of the state of Meghalaya in northeastern India. It is known for its natural beauty, tribal culture, and agricultural practices.

The Pass Located at the Southern End of the Nilgiri Hills in South India
The pass located at the southern end of the Nilgiri Hills in south India is called the Palghat gap.
Explanation:
- The Nilgiri Hills are a mountain range in southern India, located in the states of Tamil Nadu and Kerala.
- At the southern end of the Nilgiri Hills, there is a pass known as the Palghat gap.
- The Palghat gap is a low mountain pass that acts as a corridor between the Western Ghats and the Eastern Ghats.
- It is an important geographical feature as it serves as a connection between the states of Kerala and Tamil Nadu.
- The pass is named after the town of Palakkad (also known as Palghat) in Kerala, which is located near the pass.
- The Palghat gap is known for its scenic beauty and is often traversed by road and rail routes connecting the two states.
- It plays a crucial role in the transportation and communication between the western and eastern parts of southern India.
- The pass is also significant for its impact on the weather patterns in the region, as it allows the southwest monsoon winds to enter the Indian subcontinent.

The natural region which holds the Indian subcontinent is the monsoon region. Here is a detailed explanation of why the answer is C:
Monsoon Region:
- The Indian subcontinent is primarily characterized by a monsoon climate, which is a distinct seasonal pattern of winds and precipitation.
- The monsoon region experiences heavy rainfall during the summer months (June to September) due to the southwest monsoon winds bringing moisture from the Indian Ocean.
- The monsoon winds are influenced by the differential heating of land and sea, resulting in the reversal of wind direction between summer and winter.
- The monsoon rainfall is crucial for agriculture in the region, as it provides water for irrigation and supports the growth of crops.
- The Indian subcontinent's monsoon region is known for its diverse ecosystems, including tropical rainforests, grasslands, and wetlands.
Other Options:
A: Equatorial Climate Change Region: This region is characterized by high temperatures and heavy rainfall throughout the year. It does not accurately describe the climate of the Indian subcontinent.
B: Hot Desert: The Indian subcontinent does not have a hot desert climate. It is more known for its monsoons and diverse ecosystems.
D: Mediterranean: The Mediterranean climate is characterized by mild, wet winters and hot, dry summers. This climate is not found in the Indian subcontinent.
In conclusion, the Indian subcontinent is best described as a monsoon region due to its distinct seasonal rainfall patterns and the importance of monsoon rains for agriculture.

The place in India where precipitation occurs in the form of snowfall is Drass. Here is a detailed explanation:
Drass:
- Drass is a town located in the Kargil district of Jammu and Kashmir, India.
- It is famously known as the second coldest inhabited place in the world.
- The extreme cold climate in Drass leads to the occurrence of snowfall during winter months.
- The temperature in Drass can drop as low as -45 degrees Celsius, making it a perfect environment for snowfall.
Other options such as Shillong, Chandigarh, and Haridwar do not experience snowfall as they are situated in regions with a milder climate.
- Shillong: Shillong, the capital of Meghalaya, experiences a moderate climate throughout the year. It receives heavy rainfall, but not snowfall.
- Chandigarh: Chandigarh, the capital of Punjab and Haryana, has a subtropical climate with hot summers and cold winters. It does not receive snowfall.
- Haridwar: Haridwar, located in Uttarakhand, experiences a hot summer and a cold winter. It does not receive snowfall either.
Therefore, the correct answer is Drass when it comes to places in India where precipitation occurs in the form of snowfall.

Which trees grow in Tropical Rain Forests?



The trees that grow in Tropical Rain Forests include:



Mahogany: Mahogany trees are known for their valuable hardwood and are found in tropical rain forests in South America, Central America, and Africa.



Ebony: Ebony trees are known for their dark, dense wood and are found in tropical rain forests in Africa, Asia, and the Americas.



Rosewood: Rosewood trees are known for their beautiful and durable timber and are found in tropical rain forests in Africa, Asia, and the Americas.



All of them: All three trees mentioned (Mahogany, Ebony, and Rosewood) can be found in tropical rain forests around the world.



Therefore, the correct answer is D: All of them.

Aravallis mountain ranges: Example of old fold mountains
Explanation:
The Aravallis mountain ranges in India are an example of old fold mountains. Here is a detailed explanation:
Definition of old fold mountains:
Old fold mountains are mountain ranges that were formed millions of years ago through the process of folding and upliftment of the Earth's crust. They have undergone extensive erosion and weathering over time.
Characteristics of old fold mountains:
1. Age: Old fold mountains are typically ancient and have a long geological history.
2. Erosion: These mountains have undergone extensive erosion and weathering, resulting in a rounded and worn-out appearance.
3. Folded Structure: They display folded structures due to the compression and folding of the Earth's crust during their formation.
4. Lower Altitude: Old fold mountains are generally lower in altitude compared to young fold mountains.
5. Stable and less seismically active: These mountains have undergone tectonic stability for a long period and are less prone to seismic activity.
Aravallis mountain ranges:
1. Location: The Aravalli Range is located in western India, stretching approximately 800 km across the states of Gujarat, Rajasthan, Haryana, and Delhi.
2. Age: The Aravallis are one of the oldest mountain ranges in the world, estimated to be around 350 million years old.
3. Structure: They exhibit a folded structure, indicating the tectonic forces that acted upon them during their formation.
4. Erosion: Over millions of years, the Aravallis have undergone substantial erosion, resulting in their current low relief and rounded appearance.
5. Biodiversity: The Aravallis are home to a diverse range of flora and fauna, making them ecologically significant.
Therefore, based on the characteristics and geological history, the Aravallis mountain ranges are a prime example of old fold mountains.

The river Krishna flows through the states of Maharashtra, Karnataka, and Andhra Pradesh. It originates in the Western Ghats in Mahabaleshwar, Maharashtra, and flows eastward across the Deccan Plateau into the Bay of Bengal. Along its course, it passes through several towns and villages, and serves as a major source of water to these regions.