Short & Long Questions: Life in the Tropical and the Subtropical Regions | Window on the Word Class 7: Solutions, Notes & Worksheets PDF Download

Short Answer Questions

Q1: What is the main river that drains the Amazon basin?
Ans: The main river that drains the Amazon basin is the Amazon River.

Q2: Which region has a hot and wet climate throughout the year, the Amazon basin, or the Ganga-Brahmaputra basin?
Ans: The Amazon basin has a hot and wet climate throughout the year.

Q3: What is the term for the dense Amazon rainforest, where sunlight is limited?
Ans: The dense Amazon rainforest is also known as the "selva."

Q4: Name three animals found in the Amazon rainforest.
Ans: Some animals found in the Amazon rainforest are jaguars, monkeys, and anacondas.

Q5: Why is the Ganga-Brahmaputra Plain one of the most densely populated regions in the world?
Ans: The Ganga-Brahmaputra Plain is densely populated due to fertile alluvial soil, a flat landscape with excellent transportation, favorable climate, and various job opportunities.

Q6: What is the primary crop grown in the Ganga-Brahmaputra basin?
Ans: The primary crop grown in the Ganga-Brahmaputra basin is paddy or rice.

Q7: Name the largest mangrove forest in the world found in the Ganga-Brahmaputra basin.
Ans: The largest mangrove forest in the world in the Ganga-Brahmaputra basin is the Sundarbans.

Q8: What is shifting agriculture known as in northeast India?
Ans: Shifting agriculture in northeast India is known as "Jhum."

Q9: Name two impacts of human interaction on the Amazon basin.
Ans: Two impacts are deforestation due to the Trans-Amazonian highway and reduced carbon dioxide absorption leading to global warming.

Q10: What specific issue threatens the Sundarbans delta in the Ganga-Brahmaputra basin?
Ans: Sea-level rise caused by global warming threatens the Sundarbans delta.

Long Answer Questions

Q1: Describe the climate of the Amazon basin and its effects on the region's lifestyle.
Ans: The Amazon basin has a hot and wet climate throughout the year with frequent rainfall. This climate encourages a lush rainforest but can make transportation difficult. People adapt to this by living in traditional huts and relying on hunting, fishing, and agriculture, including slash and burn farming.

Q2: Explain the impact of the Trans-Amazonian highway on the Amazon basin.
Ans: The Trans-Amazonian highway, built in the 1970s, opened up the Amazon basin to outsiders, leading to deforestation, displacement of indigenous people, and soil degradation. It reduced the region's carbon dioxide absorption, contributing to global warming.

Q3: Discuss the factors contributing to the high population density in the Ganga-Brahmaputra basin.
Ans: The Ganga-Brahmaputra Plain is densely populated due to its fertile alluvial soil, flat landscape with excellent transportation, pleasant climate, and the presence of various agriculture-based and mineral-based industries providing job opportunities.

Q4: Describe the main occupations and agriculture practices in the Ganga-Brahmaputra basin.
Ans: The main occupation in the Ganga-Brahmaputra basin is agriculture. Paddy or rice is the primary crop. Other crops include wheat, sugarcane, jute, pulses, and tea. Farmers use traditional methods, such as manure, irrigation, and quality seeds. Indigenous communities practice shifting agriculture known as "Jhum" in the hilly regions.

Q5: Explain the environmental challenges faced by the Sundarbans delta in the Ganga-Brahmaputra basin.
Ans: The Sundarbans delta is threatened by sea-level rise due to global warming. A rise in sea levels could inundate vast areas, affecting the livelihoods of millions of farmers and fisherfolk, as the delta is vulnerable to such changes.