Test: Human Environment Interactions the Tropical and The Subtropical Region - UPSC MCQ

Yes, it's true! The Ganga-Brahmaputra basin is home to many animals like elephants, tigers, deer, and monkeys. These animals live in the wild areas near the rivers. They need these places to survive and find food. It's important to protect their homes so that they can stay safe and healthy.

The different phases of agricultural work are divided among men and women according to physical aptitude, on the one hand, and rituals. 

With a 5.5 million km2 (2.1 million sq mi) area of dense tropical forest, this is the largest rainforest in the world.

Bromeliad, a special specie of plants, is found in North America and known to create aquatic habitat by storing water in their leaves.

Manioc is a shrub. It belongs to the Spurge family of plants and it grows in tropical climates. It is cultivated for its edible root.

Population density tells us how many people live in a specific area. If there are a lot of people in a small area, the population density is high. If there are fewer people in a big area, the population density is low.

Slash and burn agriculture is a way of farming where people clear land by cutting and burning trees and plants before planting crops.

• The Amazon Basin is called the equatorial region because it is situated near the equator, between 10 degrees North and 10 degrees South.
• This means it is very close to the imaginary line that divides the Earth into the Northern Hemisphere and the Southern Hemisphere.
• Being close to the equator gives this region its hot and wet climate with high humidity and almost daily rainfall.

Terraces are built on steep slopes to help slow down the flow of water, so it doesn't rush off too fast. This way, the water can stay longer on each level of the terrace, giving plants more time to absorb it and grow better.

The Ganga-Brahmaputra basin, with its fertile alluvial soils and ample water supply, is ideal for the cultivation of various crops, including sugarcane and jute, which are both significant cash crops in the region. Sugarcane is extensively grown due to the high demand for sugar and its by-products. The climate and soil in the basin are highly suitable for sugarcane cultivation, which requires substantial water and fertile soil. Jute, known as the "golden fibre," thrives in the standing water found in the Ganga-Brahmaputra delta, making this region one of the world's largest producers of jute. The area's climate does not favor coffee or tea to the extent it does for sugarcane and jute, although tea is grown in the Assam part of the Brahmaputra basin, but not as predominantly in the Ganga basin part.

• This statement is True. The Ganga-Brahmaputra plain indeed has several big towns and cities like Allahabad, Kanpur, Varanasi, Lucknow, Patna, and Kolkata. These cities have a population of more than ten lakhs and are situated along the River Ganga.

• For example, Varanasi is a famous city located along the River Ganga. It is known for its rich cultural heritage and historical significance. The presence of these big towns and cities along the river is important for various activities like trade, transportation, and tourism.

Tea plantations require specific climatic conditions to thrive, including a warm and humid climate with frequent rainfall and well-drained, acidic soil. Assam and West Bengal, particularly the Darjeeling region in West Bengal, are well-known for their extensive tea plantations. Assam is one of the world's largest tea-producing regions, famous for its robust Assam tea, while Darjeeling tea is renowned for its unique aroma and flavor. The climatic conditions in these areas are ideal for tea cultivation, which is not as suitable in Punjab's climate or Kerala's, although Kerala does have some tea plantations in its hilly regions. Himachal Pradesh, despite its suitable climate in some areas, is more known for its fruit orchards rather than large-scale tea production on the level of Assam and West Bengal.

The rainforest is rich in fauna. Birds such as toucans (Fig. 6.4), humming birds, macaw with their brilliantly coloured plumage, oversized bills for eating make them different from birds we commonly see in India. These birds also make loud sounds in the forests.