Class 7 Exam > Class 7 Notes > Social Studies (SST) Class 7 > Short & Long Question Answers - Human-Environment Interactions The tropical & the subtropical region
Class 7 Geography Question Answers - Human Environment Interactions - The Tropical and Subtropical Region
Short Answer Question
Q1: The sunlight does not reach the ground in rainforests. Why?
Ans: The forest is in fact so thick that a dense roof created by leaves and branches does not allow the sunlight to reach the ground.
Q2: Name the region in which the Ganga Brahmaputra basin is located.
Ans: The Ganga Brahmaputra basin lies in the sub-tropical region that is situated between 10 degrees north to 30 degrees north latitudes.
Q3: What are the main features of the Ganga Brahmaputra basin?
Ans: The plain of the Ganga and the Brahmaputra, the mountains of the foothills of the Himalayas and the Sunder bans delta are the main features of this basin.
Q4: Name the tropical deciduous trees that grow in the Ganga and Brahmaputra.
Ans: In the Ganga and Brahmaputra plains tropical deciduous trees grow along with teak, Sal and peepal.
Q5: Name some important cities located on the river Ganga?
Ans: Some important cities located on the river Ganga are Allahabad, Kanpur, Varanasi, Lucknow, Patna and Kolkata.
Long Answer Questions
Q1: A huge variety of life is found in the rainforests of the Amazon. Explain.
Ans: The rainforests of the Amazon basin are very rich in fauna. Birds such as toucans, hummingbirds, and birds of paradise with their brilliantly coloured plumage, and oversized bills for eating, make them different from the birds we see in our daily life. Animals include monkeys, sloths and ant-eating tapirs. Various species of reptiles and snakes also thrive in these forests. Crocodiles, snakes and pythons are found there in a huge number. Anaconda and boa constrictor are some of the species found there.
The Amazon basin is also home to thousands of species of insects. Several species of fish including the flesh-eating piranha fest are also found in the river. Thus, this basin has wildlife in abundance.
Q2: Describe the flora and fauna found in the Ganga-Brahmaputra basin.
Ans: The Ganga-Brahmaputra basin is rich in flora and fauna.
- Flora: In the Ganga Brahmaputra plain tropical deciduous trees grow, along with teak, sal and peepal. Thick bamboo groves are common in the Brahmaputra plain. The delta area is covered with mangrove forests. In parts of Uttarakhand, Sikkim and Arunachal Pradesh, coniferous trees like pine, deodar and fir can be seen.
- Fauna: There is a variety of wildlife in the Ganga Brahmaputra basin. Elephants, tigers, deer and monkeys are common. The one-horned rhinoceros is found in the Brahmaputra plain. In the delta, Bengal tiger, alligators and crocodiles are found. Aquatic life abounds in the fresh river waters, the lakes and the Bay of Bengal sea. The most popular varieties of the fish are the rohu, catla and hilsa.
The document Class 7 Geography Question Answers - Human Environment Interactions - The Tropical and Subtropical Region is a part of the Class 7 Course Social Studies (SST) Class 7.
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FAQs on Class 7 Geography Question Answers - Human Environment Interactions - The Tropical and Subtropical Region
| 1. What are the main characteristics of tropical and subtropical regions? |  |
Ans. Tropical regions are typically warm and humid, with temperatures averaging above 20°C throughout the year. They receive abundant rainfall, leading to lush vegetation and diverse ecosystems, such as rainforests. Subtropical regions, on the other hand, have hot summers and mild winters. They may experience less rainfall than tropical regions, resulting in a mix of vegetation, including grasslands and sparse forests.
| 2. How do human activities impact the environment in tropical and subtropical regions? | |
Ans. Human activities such as deforestation, agriculture, and urbanization significantly impact the environment in tropical and subtropical regions. Deforestation for timber and agriculture can lead to habitat loss and decreased biodiversity. Pollution from cities can affect air and water quality, while climate change can alter rainfall patterns, further threatening the delicate ecosystems found in these regions.
| 3. What types of vegetation are commonly found in tropical and subtropical regions? | |
Ans. Tropical regions are known for their dense rainforests, which feature a variety of trees, shrubs, and plants, including tall hardwoods like mahogany and diverse understory plants. Subtropical regions often have a mix of vegetation, including deciduous and evergreen trees, shrubs, and grasses. Examples include savannas and scrublands, which support different animal species adapted to these environments.
| 4. How does climate change affect tropical and subtropical areas? | |
Ans. Climate change can lead to rising temperatures, altered rainfall patterns, and increased frequency of extreme weather events in tropical and subtropical areas. These changes can affect agriculture, disrupt ecosystems, and threaten wildlife. For instance, some plant species may not be able to adapt quickly enough, leading to shifts in biodiversity and ecosystem services.
| 5. What are some sustainable practices that can be implemented in tropical and subtropical regions? | |
Ans. Sustainable practices in tropical and subtropical regions include agroforestry, which combines agriculture with tree planting, and organic farming, which reduces chemical use. Promoting conservation efforts to protect natural habitats, establishing protected areas for wildlife, and implementing responsible tourism can also help maintain environmental balance while supporting local economies.
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