Physical Features Of India Class 9 Quiz

The Himalayas are known as the young fold mountains because they were formed relatively recently in geological terms through the process of folding. Fold mountains are created when tectonic plates collide, causing the Earth's crust to buckle and fold. The Himalayas were formed as a result of the collision between the Indian and Eurasian plates, which began around 50 million years ago and is still ongoing. The young age of the Himalayas is evident from their towering peaks, deep valleys, and ongoing geological activity, such as earthquakes and the growth of new mountain ranges.

The type of soil formed depends on the rocks found in the area. This is because the rocks undergo weathering and erosion over time, breaking down into smaller particles that make up the soil. Different types of rocks have different compositions and characteristics, which in turn influence the properties of the soil. For example, soil formed from limestone rocks tends to be alkaline, while soil formed from granite rocks tends to be acidic. Therefore, the statement that the type of soil formed depends on the rocks found in the area is true.

The peninsular plateau in India is considered the oldest land mass because it is composed of ancient rocks that have been formed over millions of years. These rocks are believed to be some of the oldest on Earth, dating back to the Archean era. The plateau is also characterized by its stable and hard rock formations, which have resisted the forces of erosion and tectonic activity over time. This makes it a significant geological feature and supports the statement that the peninsular plateau is the oldest land mass of India.

The statement is true because erosion, deposition, and weathering are indeed three important processes that have played a significant role in shaping the physical features of India. Erosion refers to the wearing away of rocks and soil by natural forces like wind and water, which has contributed to the formation of valleys, gorges, and river systems. Deposition involves the laying down of sediment and soil, leading to the creation of plains and deltas. Weathering, on the other hand, refers to the breakdown of rocks and minerals, which has influenced the formation of mountains and plateaus in India.

Anaimudi is the correct answer because it is indeed the highest peak in the Western Ghats. Located in the state of Kerala, Anaimudi stands at an elevation of 2,695 meters (8,842 feet) above sea level. It is a popular trekking destination and offers breathtaking views of the surrounding landscapes. Guru Shikhar, on the other hand, is the highest peak in the Aravalli Range in Rajasthan, while Dodabetta is the highest peak in the Nilgiri Hills in Tamil Nadu. Therefore, both Guru Shikhar and Dodabetta are not the highest peaks in the Western Ghats, making them incorrect options.

The explanation for the given correct answer is that the Aravallis are indeed the oldest mountains in India. They are a range of mountains located in the western part of India, stretching across the states of Gujarat, Rajasthan, Haryana, and Delhi. The Aravallis have a geological history dating back millions of years and are considered one of the oldest mountain ranges in the world. They have witnessed various geological and climatic changes over time, making them a significant geological feature of India.

Garo, Khasi and Jaintia hills are located in the state of Meghalaya. Meghalaya is a state in northeastern India and these hills are an important geographical feature of the state. The Garo, Khasi, and Jaintia hills are known for their scenic beauty and rich biodiversity. Meghalaya is also famous for its abundant rainfall, which contributes to the lush greenery and numerous waterfalls in the region.

The Narmada river is not an eastern flowing river. It is a westward flowing river in central India. It originates from the Amarkantak plateau in Madhya Pradesh and flows through the states of Madhya Pradesh, Maharashtra, and Gujarat before emptying into the Arabian Sea. The other rivers mentioned in the options - Godavari, Mahanadi, and Krishna - are all eastern flowing rivers that flow towards the Bay of Bengal.

The theory of plate tectonics describes three kinds of plate boundary movements:

Convergent (plates move towards each other)

Divergent (plates move away from each other)

Transform (plates slide past each other)

The correct movements are convergent, divergent, and transform, not two convergent.

Shipki La is the correct answer because it is the pass through which the Satluj river enters India.