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NCERT Solutions for Class 7 Social Science - Human Environment Interactions The Tropical and

Q1: Answer the following questions.

(i) Name the continent in which the Amazon Basin is located. 
Ans: Amazon Basin is located in South America.

(ii) What are the crops grown by the people of the Amazon Basin.
Ans: The people of the Amazon Basin mainly grow crops like tapioca, pineapple and sweet potato. They also grow manioc also known as cassava, cocoa and coffee.

(iii) Name the birds that you are likely to find in the rainforests of the Amazon. 
Ans: Toucans, humming birds and bird of paradise are the birds that likely to find in the rainforests of the Amazo.

(iv) What are the major cities located on the River Ganga. 
Ans: Allahabad, Kanpur, Lucknow, Varanasi, Patna and Kolkata are the major cities located on the River Ganga.

(v) Where is the one-horned rhinoceros found?
Ans: The one-horned rhinoceros is found in the Brahmaputra plain.


Q2: Tick the correct answer.

(i) Toucans are a type of 
(a) birds
(b) animals
(c) crops
Ans: (a)

(ii) Manioc is the staple food of 
(a) Ganga Basin
(b) Africa
(c) Amazon
Ans: (c) Amazon

(iii) Kolkata is located on the river
(a) Orange
(b) Hooghly
(c) Bhagirathi
Ans: (b)

(iv) Deodars and firs are a type of 
(a) Coniferous trees 
(b) Deciduous trees 
(c) shrubs 
Ans: (a)

(v) Bengal tiger is found in 
(a) mountains 
(b) delta area 
(c) Amazon 

Ans: (b)


Q3: Match the following.

(i) Cotton textile

(a) Assam

(ii) Maloca

(b) Terrace farming

(iii) Piranha

(c) Sericulture

(iv) Silk worm

(d) Slanting roof

(v) Kaziranga

(e) Ganga plain

-

(f) Varanasi

-

(g) Fish

Ans:

(i) C otton textile

(f) Varanasi

(ii) Maloca

(d) Slanting roof

(iii) Piranha

(g) Fish

(iv) Silk worm

(c) Sericulture

(v) Kaziranga

(a) Assam


Q4: Give reasons.

(i) The rainforests are depleting.
Ans:

  • The indigenous population was pushed out for the developmental activities which is leading to the the destruction of the rainforests.
  • Large scale deforestation for construction of roads, industries and houses.
  • For getting wood from forests in order to increase economical profit.
(ii) Paddy is grown in the Ganga-Brahmaputra plains.

Ans: Paddy is grown in the Ganga-Brahmaputra plains the availability of sufficient amount of water in this area. Paddy requires fertile alluvial soil and much water to grow which is easily available in this plain. The rainfall and temperature also support the growth of paddy.


Q5: Map skills.

(i) On an outline map of the Indian Sub-continent, draw the rivers Ganga and Brahmaputra from the source to the mouth. Also show the important tributaries of both the rivers. 
(ii) On the political map of South America, draw the equator. Mark the countries through which the equator passes.
Ans:
(i)NCERT Solutions for Class 7 Social Science - Human Environment Interactions The Tropical and
(ii)
NCERT Solutions for Class 7 Social Science - Human Environment Interactions The Tropical and

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FAQs on NCERT Solutions for Class 7 Social Science - Human Environment Interactions The Tropical and

1. What are the major environmental challenges faced in tropical and sub-tropical regions?
Ans. In tropical and sub-tropical regions, some major environmental challenges include deforestation, loss of biodiversity, soil erosion, natural disasters like hurricanes and cyclones, and water scarcity. These regions are highly susceptible to the impacts of climate change, which further exacerbate these challenges.
2. How does human activity contribute to deforestation in tropical and sub-tropical regions?
Ans. Human activity contributes to deforestation in tropical and sub-tropical regions through activities such as logging, agriculture expansion, and infrastructure development. The demand for timber, land for agriculture, and urbanization leads to the clearing of forests, resulting in the loss of valuable habitats and increased greenhouse gas emissions.
3. What are the consequences of soil erosion in tropical and sub-tropical regions?
Ans. Soil erosion in tropical and sub-tropical regions has significant consequences. It leads to the loss of fertile topsoil, which affects agricultural productivity and food security. It also results in increased sedimentation in rivers and water bodies, leading to water pollution and reduced water quality. Additionally, soil erosion contributes to the degradation of ecosystems and loss of biodiversity.
4. How does climate change impact the tropical and sub-tropical regions?
Ans. Climate change has several impacts on tropical and sub-tropical regions. It leads to rising temperatures, altered precipitation patterns, and increased frequency and intensity of extreme weather events like hurricanes and droughts. These changes can disrupt ecosystems, affect agricultural productivity, and cause water scarcity, posing risks to human livelihoods and biodiversity in these regions.
5. What are the measures that can be taken to mitigate the environmental challenges in tropical and sub-tropical regions?
Ans. To mitigate the environmental challenges in tropical and sub-tropical regions, some measures can be taken. These include promoting sustainable land-use practices, such as afforestation and reforestation, implementing conservation strategies to protect biodiversity hotspots, adopting climate-resilient agricultural techniques, and promoting renewable energy sources. Additionally, international cooperation and policy interventions are essential to address these challenges effectively.
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