Important Questions: Human Environment Interactions | Social Studies (SST) Class 7 PDF Download

Q1: What is the significance of the equator in relation to the Amazon Basin, and which countries does the equator pass through in the basin?
Ans: The equator is significant as it marks the tropical region, and it passes through countries like Brazil, Peru, Bolivia, Ecuador, Colombia, and a small part of Venezuela.

Q2: Explain the climate of the Amazon Basin and its impact on the ecosystem.
Ans: The Amazon Basin has a hot and wet climate throughout the year, with high humidity. This climate supports the growth of thick rainforests, impacting the ecosystem by creating a diverse habitat for various plant and animal species.

Q3: Describe the vegetation in the Amazon rainforest and explain how it influences the life within the basin.
Ans: The rainforest vegetation is dense, forming a "roof" that limits sunlight. Shade-tolerant plants like orchids and bromeliads thrive. This vegetation supports diverse fauna, including toucans, monkeys, and various reptiles.

Q4: What role do women play in the traditional lifestyle of the people in the Amazon Basin, and how has their way of life changed over time?
Ans: Women in the Amazon Basin traditionally take care of crops, growing food like tapioca and sweet potato. With changing times, the introduction of development activities has altered their traditional practices.

Q5: Explain the impact of the Trans Amazon highway on the indigenous population and the rainforest ecosystem.
Ans: The Trans Amazon highway made the rainforest more accessible, leading to the displacement of the indigenous population. This, along with other developmental activities, has contributed to the gradual destruction of the rainforest.

Q6: What are the main features of the Ganga-Brahmaputra basin, and how does its topography influence the distribution of the population?
Ans: The Ganga-Brahmaputra basin features plains, mountains, foothills, and the Sundarbans delta. The topography influences population distribution, with plains being more suitable for habitation due to fertile soil.

Q7: Enumerate the crops grown in the Ganga-Brahmaputra basin and explain the factors influencing their cultivation.
Ans: Crops include paddy, wheat, maize, sugarcane, jute, and tea. Cultivation is influenced by factors like monsoon rains, fertile soil, and water availability.

Q8: How does the climate in the Ganga-Brahmaputra basin impact the vegetation cover, and what are the notable tree species in different regions?
Ans: The basin has a varied climate, influencing vegetation. Tropical deciduous trees, bamboo groves, and mangrove forests are common. Coniferous trees like pine, deodar, and fir grow in cooler regions.

Q9: Identify and describe some of the wildlife species found in the Ganga-Brahmaputra basin.
Ans: Wildlife includes elephants, tigers, one-horned rhinoceros, Bengal tigers, crocodiles, and various fish species like rohu, catla, and hilsa.

Q10: How does urbanization and industrial activities in cities along the Ganga contribute to river pollution?
Ans: Wastewater from cities like Allahabad, Kanpur, Varanasi, Lucknow, Patna, and Kolkata is discharged into the rivers, leading to river pollution.

Q11: Explain the significance of different modes of transportation in the Ganga-Brahmaputra basin.
Ans: Roadways, railways, waterways, and airways are well-developed for transportation in the basin, facilitating movement of people, goods, and tourism.

Q12: What are some key tourist attractions in the Ganga-Brahmaputra basin, and how does tourism impact the region?
Ans: Tourist attractions include the Taj Mahal, Allahabad, Buddhist stupas, Kaziranga, and Manas. Tourism contributes to the local economy but may also pose challenges such as environmental impact.

Q13: Discuss the role of monsoons in the Ganga-Brahmaputra basin and its influence on agriculture.
Ans: Monsoons bring rains from mid-June to mid-September, crucial for agriculture. High rainfall supports the cultivation of crops like paddy.

Q14: Evaluate the environmental implications of deforestation in the Amazon Basin and its wider consequences.
Ans: Deforestation in the Amazon Basin leads to the loss of biodiversity, topsoil erosion, and transformation of lush forests into barren landscapes, with broader consequences for global ecosystems.

Q15: Compare and contrast the climate and environmental characteristics of the Amazon Basin and the Ganga-Brahmaputra basin.
Ans: The Amazon Basin has a hot and wet equatorial climate, supporting dense rainforests, while the Ganga-Brahmaputra basin experiences a varied climate with monsoons, influencing diverse vegetation and topography.