CBSE Class 10 English Coursebook Environment Solution

CBSE Class 10 English Coursebook Chapter 4 Environment Solution

CBSE Class 10 English Coursebook Chapter 4 Environment Solution. Environment Class 10 Question Answer Solution by Expert Teacher.

  • Board – CBSE.
  • Class – 10.
  • Topic – Solution.
  • Subject – English Main Coursebook.
  • Chapter – 4
  • Chapter Name – Environment.

1.) This animal is hunted for its under wool, shahtoosh, which is used to make shawls and scarves. This is the human being.

2.) The key threat to tigers is loss of habitat.

3.) The Sumatran Rhino is possibly the most critically endangered of the Asian Rhinos. The rhinos are hunted primarily because of their horn, which is used in traditional Asian medicine.

4.) The tiger has few enemies. The main predator of the tiger is the Chiru/ Tibetan Antelope.

5.) The largest endangered land mammal is the Asian elephant.

6.) The name given to the list of endangered/threatened species is The Red List of Threatened Species.

7.) The major environmental factor thought to cause the loss of habitat for the polar bear is global warming.

8.) One of the reasons the WWF (World Wildlife Foundation) was created was to educate and encourage conservation.

A.2.)

a) The network of rainforest research stations. 9.10

b) Whitaker’s achievements. 3

c) People support. 11

d) Whitaker’s love for nature, his vision and ambition. 1,2

e) The Agumbe station. 8

f) Water shortage and the need to save rainforests. 5,7

g) Becoming a conservationist. 4

A.3.)

1.) Romulus Whitaker was able to pursue his dream because of his fascination with nature.

2.) Romulus’s ambition was to establish rainforest research stations.

3.) Whitaker was able to fulfill his ambition with the help of Whitley award money.

4.) Whitaker evolved from a Naturalist to Conservationist because he realized that Animals cannot be saved without saving their habitat.

5.) According to Whitaker the most serious threat facing the humanity is Water shortage.

6.) The mission of Agumbe research station is to All the above.

A.4.)

To,

The editor,

The telegraph,

Kolkata- 700056

Subject: highlight on the issue of dwindling forests which is threat to bio reserves.

Respected sir,

I am a responsible citizen of India, want to take your concern on the arising issue of dwindling forest. For this forest coverage wildlife creatures are in life threatening situation. Amount 50% of total fishes is in threatened situation, 20% of them in vulnerable endangered state, 10% endangered and 20% is critically endangered. 70% of the total amphibians is not endangered but the rest 30% is endangered. Birds, reptiles and mammals all stand in the same state of endangered situation.

Dwindling forest reserves are significant danger to natural habitat, food, water, timber and other natural resources. Due to it, soil erosion has been increased. Flora and fauna of wildlife are disappearing rapidly for the lack of their natural habitats and food. There is also the threats of drought, famine, earthquake, flood etc. weather patterns have changed drastically in past years as an effect of global warming. Climate change and worse weather conditions are so normal nowadays due to this.

Forest are the ideal source to keep ecological balance in our environment. Disappearing of forests means extinct of other animals and wildlife creatures. So, we need to think about it and take steps for rehabilitant our environment and protecting it.

Yours faithfully,

Susmita.

A.6.)

Wetland- wetlands are water bodies- swamps, oases, mud flats, paddy fields- all makes an entire ecosystem with its associated plant and animal life- wetlands include the following habitats- natural (rivers, lakes, lagoons, coral reefs, mangroves)- man made (ponds, fish and hrimp farms, irrigated land like paddy fields, salt pans, reservoirs)- wetlands help in (preventing soil erosion, checking floods, reclaiming land, preventing siltation of waterways, breeding marine organisms like shrimps etc., providing the source of water, erosion of forests).

B.2.)

Adverse environmental effects of tourism and adventure sports. Personal conquests seem to be more important than preserving the integrity of a natural site.

Leaving behind trash

Climbing equipment

Food container like tins, platic, glass, clothes and tents.

Dead bodies

Ways to prevent it Charge high climbing fees

Checking what is being carried and what is to be brought back after being used.

Fixing personal responsibility for keeping the leftovers with the self.

Changing high penalty for breaking rules framed.

Banning climbing if found guilty of breath rules.

B.3.)

1.) c. Simple Present

2.) a. At the beginning of a sentence or a clause

3.) b. Mixed length

4.) a. So that the reader can understand more easily.

5.) b. The order in which the instructions have to be carried out.

6.) b. Yes

B.6.)

Need to rehabilitate the Environment:

Things that came from the environment- firewood, food, water, building materials

People did not get them because the environment was degraded.

Therefore environment needed to be rehabilitated.

Protecting forested mountains:

Source of- food, shelter, water etc.

Deforestation leads to- climate change, not recharging ground water, lack of water.

Hence government must- help in the rehabilitating of the forests.

Good Management of Natural Resources:

Degraded environment results in- climate change, lack of rain, change of weather patterns.

It leads to shortage of water and a change of rainfall patterns.

Good management of natural resources means supporting communities.

It is essential for peace all over the world.

Good management possible only when we have equitable distribution of natural resources.

2.) development- peace, good governance, sustainable management of resources.

3.) Wangari Maathai noticed after growing up that all the flora and fauna had disappeared. Forests which were the water resources can no longer able to contain enough water. The amount of rain has become les and weather patterns got changed.

4.) Indigenous flora and fauna ensure the present of forests which are water towers. These help in preventing soil erosion and contain the water from flowing towards sea. Indigenous flora and fauna protect local biological diversity and maintain the ecological balance.

5.) Women responded greatly to Maathai’s call of planting more trees and create green. They understood the fact that they can sell those trees after 5-10 years and increase their income as well. With this new initiative they got confidence, sense of pride and dignity. Overall, it empowered them in a way.

6.) Wangari Maathai saw women planting trees. They sold trees after five or ten years. With it they got confidence, pride and dignity within them. Along with that the landscape was transformed. Birds and rabbits came back and the environment became beautiful again.

B.7.)

Words Meanings
ecology The relationship of living things to one another and their environment, or the study of such relationships.
habitat A place where a population lives and its surroundings, both living and non-living.
herpetologist A zoologist who studies repitles and amphibians.
extinct Having no living representative.
aquifer An underground geological formation, containing water.
naturalist A person who studies plants and animals, especially outdoors.
biodiversity The variety and variability among living oraganisms and the ecological complexes in which they occur.
mangrove Tropical evergreen trees or shrubs forming dense thickets along tidal shores.
conservationist A person who advocates preservation and careful management of natural resources.

B.9.)

Dear Wangari Maathai,

I am pleased to introduce myself to you. I am greatly motivated with your initiatives to protect our environment and inspire women in the same way. After reading your movement I have always dreamed of working under your guidance.

I want to tell you details about myself that I am a truly nature observer and protector. I always try to conserve environment in my short steps. I try to educate and encourage people around me about the benefits of protecting natural resources. I wish to be a naturalist in future and pursue my dream career by serving nature around us. So, I want to learn more innovative movements from you which I can apply in my further nature conservation. I a ready to work with you in any programme through any of the research centres. I am attaching my qualification and experience details along with this letter.

I will be waiting to listen from you soon. I am eager to work with you and know our mother nature at better level.

Susmita.

C.3.)

To,

The editor,

The times of India,

Kolkata- 700032

Subject: wastage of food in lavish Indian weddings.

Respected sir,

I want to draw your attention on the increasing issue of colossal wastage of food in Indian weddings at present society. It is the age old practice of spending huge amount in arranging luxurious wedding in Indian society. There is no problem of spending much amount for rich people who can afford. In some recent years, showing off through luxurious arrangements has become trend of Indian weddings.

It is estimated that crores of money have been spent in weddings only every year within India. Some family even tend to take marriage loans for wedding arrangements to be in the same level as per society. Then they have to face burden of loans for long time. But the biggest issue is wastage of food in weddings where parents invest their life long savings for a single day of their child’s marriage. Parents do not leave any sector incomplete for making the day special. But foods get wasted unknowingly for over arrangement and casual behaviour of guests. Some even do not understand the value of wastage food and take food beyond measure. There is a large percentage of unfed people in India who can be given those extra food. But people do not care about it and waste food without much concern.

So, I want to highlight on this issue through your daily newspaper. People may get a view of this concerning issue and become aware in any further wedding function.

Thank you,

Susmita

D.4.)

  D.1 D.2 D.3
Country Nigeria India Ukraine
Cause (s)of pollution Poisonous chemicals in drums Tanneries Explosion in Chernobyl nuclear power station
Who is responsible? Factories in Italy Leather factory owners Government and maintenance engineers
Consequences 13 people died Oil pollution, crop cannot grow, nearest fuel 10 km away Many death, mass evacuation, barren field, no bird activity
What do you think should be done to solve the problem? Stop developed countries from dumping poisonous chemicals into developing countries in the name of export. Resettle the people from koko village elsewhere. Tanneries required to treat dangerous chemical before discharge into the streams, tanneries to install devices to purify smoke at the source before spewing out into the atmosphere. Stop using nuclear power.

D.5.)

Koko Village, Nigeria:

Mr. nana might bring those empty drum for using in domestic purposes or hi children could roll them there.

The drums were sent from Italy to Nigeria because it was easy dumping chemicals in Nigeria than Italy. The factory owners might not get permissions of dumping chemicals in Italy.

There was money in the brown paper bag that the chief received.

The drums were referred to as the mountain of death because they were piled on each other very high level like mountain. They are aerious and definite source of causing death.

Ponnimanthuri Village, India:

They are referred to the factory owners.

The women of village have to walk 10 km every day for getting firewood and drinking water.

Vijayasama says this because the villager are not at all benefitted from the nearby tanneries. They are poor and cannot afford leather shoes, leather clothes and leather handbags. They don’t need them as they lead o poor and miserable life.

Vorobyov Village, Ukraine:

Natasha’s three children died because of radiation poisoning.

Natasha lives in Moscow now.

Natasha is going to die soon. She is also poisoned by radiation.

D.6.)

  Happy words Unhappy words
Koko Village, Nigeria picturesque, colourful, playful, stream, brightest, smiling skull and crossbones symbol, slimy, leaking out, badly, smoking, swelling, bursting, poisonous, frowning, troubled, died, pain, deaths, terrible pain, sick.
Ponnimanthuri Village, India Good, green, jobs, grow, rich, rivers Anger, ominous looking, monsters, black, shroud, chemicals, arsenic, smoke, silent, discharged polluting, ulcers, poison dumped, tailed off
Vorobyov Village, Ukraine Lovely, birthday, played, warm, laughing, chewed, neighed Worry, explosion, nervously, white smoke, pale radioactive dust, hair fell out, thin, sores, died, broke down, cried, buried, ghost, barren.

D.7.)

Activity Resources usage    
    Low Medium High
Brushing my teeth Water 1    
Having a bath Water, soap, shampoo   2  
Commuting to school Bu, car     3
Watching Television TV     3
Visiting Friends Public transport, car   2  
Using computer Computer, electricity   2  
Using Fans/Air conditioners/Coolers Equipment, electricity     3
Cooking L.P.G, electricity     3
Entertainment TV, cinema   2  
Subtotals (add up each column and write the subtotals in the boxes)   1 8 12
Total Score (add all the subtotals) 21      

D.8.)

Use Less Energy Use Less Water Make Less Waste
Turn off the light when there is no one the classroom or bedroom.

Using computer only when it needs

Using public transport instead of personal cars

Using TV for less time

Using energy saving cookers like pressure cookers

Don’t leave the water in the running when brushing.

Taking a bath in showers.

Using limited water for cooking.

Only dry cleaning of cars, no car wash.

Water harvesting.

Kitchen waste water using to irrigate plant in flower pots.

Using showers for watering plants in kitchen garden

Put the rubbish in recycling bins.

No use of plastic bags.

Using cyclable material only.

Using hopping bags made of clothes or jute

Old clothes, shoes, dresses donating others.

A)

a) they reflect glorious history of past.

b) they are signs of our national and cultural heritage.

c) the become attractive destination for tourists.

B)

a) global warming

b) natural disasters

c) Weathering and erosion

d) used rocks and tones for building towns and roads.

E.1.)

1.) While food production has shown only marginal improvement, the demand for food grains, vegetables and fruits has registered an _____exponential________________ growth the world over, forcing governments to initiate urgent measures to establish a balance between supply and demand.

2.) To construct the _____mammoth___________________ structure, the builder had to use enormous quantities of concrete.

3.) When he returned from the office, he ___ensconced________________ himself in an armchair and asked for a cup of tea.

4.) When the teacher saw a student perched ____precariously________________ on the branch of a tree, she asked him to climb down immediately.

5.) The newly appointed office assistant earned the praise of her colleagues for the ____alacrity_______________________ with which she completed the tasks assigned to her.

6.) The new office building was ____snazzy___________________ with its bright and fashionable exterior.

7.) The pensioner did not get his dues in time on account of the _____apathy____________ of the officials.

8.) The land _______abutting___________________ the post office was procured by the authorities for expanding the building that housed it.

9.) Merchants stock up on goods during festival seasons to meet the ____booming_______________________ demand and declare discounts when the sales slacken.

10.) During wars armies dig up ______subterranean______________________________ passages for the movement of troops and supplies unseen by the enemy.

E.3.)

(a) Importance of rocks

Aesthetic importance: a) true heritage site of Hyderabad, b) fascinating and unique shapes, c) mind- capturing

Ecological importance: a) helpful for the formation of pond and lakes, b) to create natural drainage system of india, c) preserve the ecological and bio-diversity balance.

(b) Threats to the geological heritage.

Causes: i) expansion of big cities, ii) illegal and indiscriminate distribution.

Effects: i) depletion in green vegetation, natural flora and fauna, ii) depletion of the ground water level.

(c) The hope

(i) The efforts of ‘Society to Save Rocks’ led to the addition of nine rock formations in regulation no. 13 of Hyderabad urban development authority for the protection of heritage buildings precincts.

(i.i) Challenge to the efforts of ‘Society to Save Rocks’ comes in the form of indifference and apathy of government to conserve rocks as conflict between development and protection in the city.

(ii) Individuals have made efforts to preserve the heritage by integrating rocks by the side of their houses into structure of their homes and interiors.

Updated: May 29, 2023 — 12:31 pm

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