RBSE Solutions for Class 8 Science Chapter 17 Environment

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RBSE Solutions for Class 8 Science Chapter 17 Environment are part of RBSE Solutions for Class 8 Science. Here we have given RBSE Rajasthan Board Solutions for Class 8 Science Chapter 17 Environment.

Rajasthan Board Solutions for Class 8 Science Chapter 17 Environment

Board RBSE
Class Class 8
Subject Science
Chapter Chapter 17
Chapter Name Environment
Number of Questions Solved 26
Category RBSE Solutions

Environment Textbook Questions Solved

I. Multiple Choice Questions

Question 1.

  1. The biotic components of natural environment is
    (a) Plants
    (b) Mountains
    (c) Fields
    (d) Water
  2. What does the pollution in simple terms means?
    (a) Uncontaminated environment
    (b) Contaminated environment
    (c) both (a) and (b)
    (d) Nice environment
  3. Which of the following is not included in the environmental friendly lifestyle?
    (a) Limited use
    (b) Controlled use
    (c) Wise use
    (d) Unlimited use
  4. When is the World Environment Day observed?
    (a) 21 June
    (b) 5 June
    (c) 2 October
    (d) 14 November

Answers:

  1. (a)
  2. (b)
  3. (d)
  4. (b)

Question 2.
Fill in the blanks.

  1. The blanket covering us on all sides is called…………….
  2. The five element mentioned in Indian culture are…………….
  3. Abiotic components include…………….
  4. Soil pollution has resulted in the decrease in fertility and…………….of soil.

Answers:

  1. environment
  2. earth, water, air, fire and sky
  3. wind, water and soil
  4. decreased

Environment Short Answer Type Questions

Question 1.
Write the types of environment.
Answer:
Environment can be mainly classified into two types:

  1. Social environment
  2. Natural Environment

The main component of social environment is human society while others biotic and abiotic components are the part of natural environment.

Question 2.
What is pollution? Write its types.
Answer:
Undesirable changes held in environmental components is called environmental pollution. In general meaning of pollution is contaminated environment.
Some types of natural pollution are as follows:

  1. Water pollution
  2. Air pollution
  3. Soil pollution
  4. Noise pollution
  5. Heat pollution
  6. Radio active or nuclear pollution
  7. Social pollution

Question 3.
What pledge would you take to save environment?
Answer:
We should follow lifestyle to save environment:

  1. We should use natural resources in a control and wise manner by keeping in mind the needs of future generations.
  2. We should use bio-degradable things maximum.
  3. Re-cycle things after use to keep environment Safe.

Question 4.
At what levels efforts can be made to protect the environment? Mention.
Answer:
Pledge for environmental conservation – We should plant trees on special occasions like – birthday, festival, death day)
Different levels of environmental conservation 
(a) Individual
(b) Family
(c) Public
(d) Official (Working place)
(e) School
(f) Administrative level

Environment Long Answer Type Questions

Question 1.
Explain the Indian perspective for environment and its conservation?
Answer:
Environmental components are worshipped in our culture and traditions where cutting green trees is sin, after bath plants and trees are watered. Sun is worshipped which is the greatest source of energy. Human has unbreakable bonding with environment. Our Aacharyas have said “Yat Pinde Tat Brahmande”. or Ras that is in body has in nature. Prithvi, Jal, Vayu, Agni, Aakash are the main components of environment. Our body is also build of these. By keeping these five elements conserves. We can secure our life. We consider Prithvi as our mother.

We can keep grains preserved by traditional methods without harming the environment like – using dry neem leaves. We have given an important place to all living beings. We worship snake on Nagpanchmi, Cow and Calf on BachhBaras, Kheer offering to crow during Shradh Paksh, Atfa Powder to ants, Dana to birds, Roti to Cow and dog etc. shows kindness towards Jeev Matra making different dishes on festivals is a way to conserved seeds, so they may not become extinct, Many plants have medicinal values, which we use in our daily life like – Peepal, Banyan tree, Amla, Tulsi, Samidha used in Yagya makes the environment pure.

Question 2.
Throw light on the role of Rajasthan in environment conservation.
Answer:
Role of Rajasthan in environment conservation:
Environment plays an important role not in human’s life but also for lives of Plants, animals, birds also. The following are the main examples of environmental conservation in Rajasthan

  1. Sacrifice of Amrita Devi in Khejarligram District of Jodhpur.
  2. Activities of Kiran Nidhi Institution of Gram Piplalantri District of Rajsamand.

Khejarli Balidan:
That time Maharaja of Jodhpur needed wood for states work, for this king’s soldiers selected Khejarli Gram near Jodhpur. The soldiers started hammering the trees of Khejarli Gram forest. When this information reached to Mrs. Amrita Devi and other villagers, they ran to save trees. Amrita devi requested to king’s soldiers.
“Don’t cut gram trees, cutting green trees is wrong”.
Soldiers didn’t agreed, then Amrita Devi, her daughters and villagers huged the trees and said-
“Sar Sathe Runkh Rahe, To bhi Sasto Jaan” .
OR
It is a cheap deal if tree is saved and head is cut. To save trees 363 villagers including Amrita Devi and her daughter martyred. Every year in their remembrance a fair is celebrated in village Khejarli on Bhadrapad Sudi Dashmi.
Rajsamand Jila Gram Piplantri:
Kiran Nidhi institution of Gram Piplantri run a movement, where birth of a girl child is celebrated and on this day villagers plant 1100 trees. On the day of Raksha Bandhan villagers tie a thread and take pledge to conserve these trees. This method is unique and successful example for environment conservation.

Environment Additional Questions Solved

I. Multiple Choice Questions

Question 1.
Abiotic factors of environment are:
(a) sunlight
(b) Temperature
(c) Rainfall
(d) All of the above

Question 2.
The physical and biological world we live in, is called:
(a) Environment
(b) Community
(c) Population
(d) Ecosystem

Question 3.
What is common to the habitat and the environment?
(a) biotic factors
(b) abiotic components
(c) Both biotic and abiotic components
(d) None of the above

Question 4.
A plant grown in environment is related to:
(a) Other plants of area
(b) Soil of area
(c) Presence of light
(d) All of the above

Question 5.
Which of the following is an abiotic components of ecosystem:
(a) Bacteria
(b) Plants
(c) Humus
(d) Fungi

Question 6.
Which of these is biotic component of the environment?
(a) Water
(b) Sunlight
(c) Human being
(d) Air

Question 7.
Radioactive pollutants pollute
(a) Soil
(b) Air
(c) Water
(d) All of the above

Question 8.
What is not related to social environment?
(a) Goodwill
(b) Brotherhood
(c) Patients
(d) Negative thinking

Question 9.
In which district of Rajasthan is Piplantri village situated?
(a) Udaipur
(b) Rajsamand
(c) Bhilwara
(d) Ajmer

Question 10.
Earth day is celebrated on?
(a) 5th June
(b) 22nd April
(c) 22nd June
(d) 23rd September

Answers:
1. (d)
2. (a)
3. (c)
4. (d)
5. (c)
6. (d)
7. (d)
8. (d)
9. (b)
10. (b)

Environment Very Short Answer Type Questions

Question 1.
What is the abiotic component of environment?
Answer: Air.

Question 2.
Which trees are worshipped by humans?
Answer:
Peepal tree, Banyan Tree, Amla, Tulsi etc are worshipped by humans?

Question 3.
When is World Environment Day celebrated?
Answer:
5th June is celebrated as World Environment Day.

Question 4.
Which ingredients are helpful in purifying the environment?
Answer:
The Mantras and Hawan ingredients used during Hawan and Yagya are also helpful in purifying the environment.

Environment Short Answer Type Questions

Question 1.
What is the difference between abiotic and biotic components?
Answer:
The differences are:

  • The abiotic components of the environment are air, water, soil, light and temperature.
  • The biotic components of the environment are plants, animals, including human beings’ and micro-organisms.

Question 2.
How do we follow lifestyle to save the environment?
Answer:
To save the environment we can apply following lifestyle:

  1. Use the natural resources in a controlled and wise manner so that they would be available for the coming generation.
  2. Use of biodegradable products in maximum possible manner.
  3. Conserve the environment by recycling the used substances.

Question 3.
Write the main activities to create public awareness?
Answer:
(a) Creating public awareness by rallies.
(b) Conducting poster making, slogan competition, dramas and seminar.
(c) Organising the community planting program with public involvement in public areas with great enthusiasm and zeal.

Environment Long Answer Type Questions

Question 1.
What is the soil pollution? How does it caused?
Answer:
Removal of useful components from the soil and addition of other substance, i.e. fertilisers, pesticides, which adversely affect the fertility of soil and kill the various organisms in it, is called soil pollution. Causes of soil pollution: Soil pollution is caused by solid wastes and chemicals. The slag heaps from mines spoil the beauty of mining sites. The major sources of soil pollution are the industries such as earth and paper mills, sugar mills, oil refineries, power plants, chemicals and fertilizer manufacturing units, iron and steel plants, plastic and rubber Industries and many more.

Most Industrial furnaces and thermal power station produce fly ash, which is grey powdery residue of unburnt material, and causes pollution. Our domestic waste included large amount of solid waste. They include food scraps, vegetable remains, packing materials, cans, rags, papers, cinders, ash, broken gadgets, wood, metals, plastics, polythene bags, ceramics, glass, aluminium, rubber leather, construction rubbish bricks, sand and other junk materials.

We hope the given RBSE Solutions for Class 8 Science Chapter 17 Environment will help you. If you have any query regarding RBSE Rajasthan Board Solutions for Class 8 Science Chapter 17 Environment, drop a comment below and we will get back to you at the earliest.