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Maharashtra State BoardSSC (English Medium) 10th Standard

Balbharati solutions for सायन्स अँड टेक्नॉलोजी २ [इंग्रजी] इयत्ता १० महाराष्ट्र राज्य मंडळ chapter 4 - Environmental management [Latest edition]

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Solutions for Chapter 4: Environmental management

Below listed, you can find solutions for Chapter 4 of Maharashtra State Board Balbharati for सायन्स अँड टेक्नॉलोजी २ [इंग्रजी] इयत्ता १० महाराष्ट्र राज्य मंडळ.


Intext QuestionExercises
Intext Question [Pages 36 - 45]

Balbharati solutions for सायन्स अँड टेक्नॉलोजी २ [इंग्रजी] इयत्ता १० महाराष्ट्र राज्य मंडळ 4 Environmental management Intext Question [Pages 36 - 45]

Can you recall?

1. (a)Page 36

What is an ecosystem?

1. (b)Page 36

Which are the different components of an ecosystem?

2.Page 36

Which are the types of consumers? What are the criteria for their classification?

3.Page 36

What may be the relationship between lake and birds on tree?

4.Page 36

Distinguish between a food chain and a food web.

Think and Answer

1.Page 36

Write the name and category of each of the component shown in picture.

2.Page 36

What is necessary to convert this picture into food web? Why?

Think:

1.Page 36

If fallen foliage in forest, dead trees, and carcasses in and around villages had not been decomposed for years.

Can you recall?

1.Page 36

Which are different trophic levels in food chain?

2.Page 36

What is an energy pyramid?

Let's Think

1.Page 37

A bird building nest on a tree feeds upon the fishes in nearby pond. Whether this bird is part of both i.e. tree as well as pond ecosystem?

Complete the chart

1.Page 37

Fill up the blank boxes and display the completed chart in classroom.

Let's Think

1.Page 37
Paddy is cultivated on large scale in various states of South India. Paddy fields are frequently attacked by grasshoppers. Similarly, frogs are also present in large number in the mud of paddy fields, to feed upon grasshoppers and snakes are also present therein to feed upon their favourite food- frogs.

However, if frog population declines all of a sudden,

  1. What will be the effect on the paddy crop?
  2. Number of which consumers will decline and which will increase?
  3. What will be the overall effect on that ecosystem?

Can you tell?

1.Page 37

What is environment? 

2.Page 37

What is included in environment?

Can you recall?

1.Page 38

Which cycles are operated in environment? What is their importance?

Can you tell?

1.Page 38

Which factors affect the environment? How?

2.Page 38

What will happen if number of consumers in environment goes on increasing gradually?

3.Page 38

What will be the effect of industry established on river bank on the river ecosystem?

Observe and fill the information

1.Page 38

Observe the environment around you. Complete the following flow chart.

Can you recall?

1.Page 39

Which are types of pollution?

2. (a)Page 39

What do we mean by natural pollution?

2. (b)Page 39

What do we mean by artificial pollution?

Complete the Chart

1.Page 39

Complete the following table taking into account the relation between the entries in three columns:

  Air pollution Water pollution Soil pollution
Components Gases: CO2, CO, Hydrocarbons, Sulphur, NOx, Hydrogen sulphides etc.
Solid: dust, ash, carbon, lead, asbestos, etc.
   
Source   Industrial wastes, Domestic wastes, Sewage, Chemicals discharged
from Industries, Pesticides used in agriculture.
 
Effect     Soil erosion, Retarded growth of plants/crops, Nutritional deficiency etc.
Control Measure
     

Use your brain power

1.Page 40

Why is it said that pollution control is important?

Complete the Chart

1.Page 40

Nowadays, We are observing the environmental degradation everywhere. Complete the flow chart given besides with the help of environment.

Search

1.Page 41

How do butterflies contribute to environmental balance?

Let’s Discuss

1.Page 41

Collect the information about Chipko Movement and discuss between two groups of your class about its importance in present situation.

Internet is my friend

1.Page 41

Sound Pollution (Control and Prevention) Rule, 2000.

2.Page 41

Biomedical Waste (Management and Handling) Rule, 1998.

3.Page 41

E-waste (Management and Handling) Rule, 2011.

Enlist and discuss

1.Page 43

Some symbols are given below. Find the meaning of those symbols in relation to environment conservation. Make a list of other such symbols.

Recall a little

1.Page 45

Collect the names of extinct birds and animals of India and tell those names to others.

Think

1.Page 45

World Wildlife Fund (WWF) published a survey in 2008. According to it, about 30% of animal species have become extinct over the period of 35 years (1975 – 2005). What will happen in future if this continues as it is?

Exercises [Page 46]

Balbharati solutions for सायन्स अँड टेक्नॉलोजी २ [इंग्रजी] इयत्ता १० महाराष्ट्र राज्य मंडळ 4 Environmental management Exercises [Page 46]

1.Page 46

Reorganize the following food chain. Describe the ecosystem to which it belongs.

Grasshopper - Snake - Paddy field - Eagle - Frog.

2.Page 46

Explain the statement - ‘we have got this Earth planet on lease from our future generations and not as an ancestral property from our ancestors.’

3. a.Page 46

Write a short note on environmental conservation.

3. b.Page 46

Write a short note on the Chipko Movement of the Bishnoi.

3. c.Page 46

Write a short note on biodiversity.

3. d.Page 46

Write a short note on sacred groves.

3. e.Page 46

Write a short note on disaster and its management.

4.Page 46

How will you justify that overcoming the pollution is a powerful way of environmental management?

5.Page 46

Which projects will you run in relation to environmental conservation? How?

Answer the following.

6. a.Page 46

Write the factors affecting the environment.

6. b.Page 46

Why does the human beings have important place in environment?

6. c.Page 46

Write the types and examples of biodiversity.

6. d.Page 46

How the biodiversity can be conserved?

6. e.Page 46

What do we learn from the story of Jadav Molai Peyang?

6. f.Page 46

Write the names of biodiversity hotspots.

6. g.Page 46

Which are the reasons for endangering the many species of plants and animals? How can we save those?

7. a.Page 46

What is the meaning of the following symbol? Write your role accordingly.

7. b.Page 46

What is the meaning of the following symbol? Write your role accordingly.

7. c.Page 46

What is the meaning of the following symbol? Write your role accordingly.

Project:

1.Page 46

Make a presentation on pollution of Ganga and Yamuna Rivers and effects of air pollution on Tajmahal.

Solutions for 4: Environmental management

Intext QuestionExercises

Balbharati solutions for सायन्स अँड टेक्नॉलोजी २ [इंग्रजी] इयत्ता १० महाराष्ट्र राज्य मंडळ chapter 4 - Environmental management

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Concepts covered in सायन्स अँड टेक्नॉलोजी २ [इंग्रजी] इयत्ता १० महाराष्ट्र राज्य मंडळ chapter 4 Environmental management are Threatened Species, Environmental Conservation, Concept of Ecosystem, Environmental Conservation and Biodiversity, Relationship Between Environment and Ecosystem, Hotspots of Biodiversity, Need of Environmental Conservation, Factors Affecting Environment, Molai's Forest Mission.

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Get the free view of Chapter 4, Environmental management सायन्स अँड टेक्नॉलोजी २ [इंग्रजी] इयत्ता १० महाराष्ट्र राज्य मंडळ additional questions for Mathematics सायन्स अँड टेक्नॉलोजी २ [इंग्रजी] इयत्ता १० महाराष्ट्र राज्य मंडळ Maharashtra State Board, and you can use Shaalaa.com to keep it handy for your exam preparation.

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