These AP 8th Class Biology Important Questions and 6th Lesson Conservation of Plants and Animals Class 8 Extra Questions will help students prepare well for the exams.
Class 8 Science Conservation of Plants and Animals Extra Questions
Conservation of Plants and Animals Class 8 Important Questions
Question 1.
What is migration of birds ?
Answer:
Moving of birds in flocks from one region to another for getting shelter and food is called as “migration”.
Question 2.
Give two examples for migrating birds.
Answer:
Great spotted woodpecker, pelicon, plover.
Question 3.
What is biodiversity ?
Answer:
The variety and variability seen in plants and animals is called biodiversity.
Question 4.
What do you understand by extinct species ?
Answer:
Species of plants and animals that have vanished from earth forever are called extinct species.
Question 5.
What is deforestation ?
Answer:
The cutting of the forests and using that land for other purposes is called deforestation.
Question 6.
What are the natural causes of deforestation ?
Answer:
- Forest fires.
- Severe drought.
Question 7.
What are the purposes of deforestation ?
Answer:
- Procuring land for cultivation.
- Building houses and factories.
- Making furniture or using wood as fuel.
Question 8.
What do you understand by the term desertification ?
Answer:
Due to deforestation, gradually the fertile land gets converted into deserts. It is called desertification.
Question 9.
What is a wildlife sanctuary ?
Answer:
Areas where animals are protected from any disturbance to them and their habitat are called a wildlife sanctuary.
Question 10.
What is a national park ?
Answer:
Areas reserved for wildlife where they can freely use the habitats and natural resources is called a national park.
Question 11.
What is a biosphere reserve ?
Answer:
Large areas of protected land for conservation of wildlife, plant and animal resources and traditional life of the tribals living in the area.
Question 12.
What is flora ?
Answer:
The plants found in a particular area are termed as flora.
Question 13.
What is fauna?
Answer:
The animals found in a particular area are termed as fauna.
Question 14.
Write the flora of Pachmarhi biosphere.
Answer:
Sal, Teak, Mango, Jamun, Silver ferns, Arjun etc., are the flora of the Pachmarhi biosphere.
Question 15.
What is the fauna of Panchmarhi biosphere ?
Answer:
Chinkara, blue-bull, barking deer, cheetal, leopard, wild dog, wolf etc., are the fauna found in Pachmarhi biosphere.
Question 16.
What are the endemic species of plants in Pachmarhi biosphere ?
Answer:
Sal and wild mango are two examples for endemic flora of Pachmarhi biosphere reserve.
Question 17.
Write the fauna of Pachmarhi biosphere reserve.
Answer:
Bison, Indian giant squirrel and flying squirrel are endemic fauna of Pachmarhi biosphere reserve.
Question 18.
What are endemic species ?
Answer:
The species of plants and animals which are found exclusively in a particular area – which are not naturally found anywhere else are called endemic species.
Question 19.
What is a species ?
Answer:
Species is a group of population which are capable of interbreeding.
Question 20.
What do you understand by the term “endangered species” ?
Answer:
Those species, whose numbers are diminishing slowly and are at the edge of facing extinction, are called endangered species.
Question 21.
What are “Rock shelters” ? What information do these provide ?
Answer:
A rock shelter is a shallow cave like opening at the base of a bluff. These rock shelters provide sufficient archaeological data of the primitive man, who occupied these shelters thousands of years ago.
Question 22.
What is Red data book ?
Answer:
It is the source book, which keep a record of all the endangered animals and plants.
Question 23.
How many trees are required to prepare 1 tonne of paper ?
Answer:
There are 17 fully grown trees to be cut to prepare 1 tonne of paper.
Question 24.
What is the permanent solution for deforestation ?
Answer:
Reforestation.
Question 25.
What is reforestation ?
Answer:
The process of replacing the destroyed forest by planting hew trees of different or same species is called reforestation.
Question 26.
What is an ecosystem ?
Answer:
An ecosystem is made of all the plants, animals and micro-organisms in an area along with non-living components such as climate, soil, river deltas etc.
Question 27.
Give an example for extinct species.
Answer:
Dinosaurs became extinct a long time ago due to changes in climatic conditions.
Question 28.
Give examples for endangered species.
Answer:
Tiger, wild buffalo, barasingha etc., are examples for endangered species.
Conservation of Plants and Animals Extra Questions
Question 1.
Write the factors responsible for vanishing of endemic species.
Answer:
- Destruction of their habitats
- Increasing population
- Introduction of new species may affect the natural habitat of endemic species and endangered their existence.
Question 2.
What is “Project Tiger” ?
Answer:
- The tiger project was launched on 1st April, 1973 by our government to protect the tiger population in India.
- It’s main objective is to ensure the maintenance of a viable population of tigers in our country.
Question 3.
Why should we save paper ?
Answer:
- To save trees.
- To save energy and water needed for manufacturing of paper.
- To reduce the release of harmful chemicals used in making of paper.
Question 4.
What are the reasons for depletion in biodiversity ?
Answer:
- Urbanization
- Expansion of agriculture
- Deforestation
- Pollution, are the main reasons for depletion in biodiversity.
Question 5.
What suggestions would you give to improve biodiversity in your area ?
Answer:
- Planting of trees
- Stop deforestation
- Protection of native species of plants and animals
- Provide wildlife corridors
- Use organic manure
- Be mercy with other creatures
Question 6.
What will happen if all insects become extinct ?
Answer:
- Pollination of flowers does not occur.
- Due to this fertilization will not take place. So, there will be no future generations of plants.
- It results in the extinction of plants.
Question 7.
What measures do you suggest to save insects ?
Answer:
- Spraying of pesticides will be minimised.
- We should use biological pest control methods instead of chemical poisons.
Question 8.
What are the conservation methods do you suggest to protect the most threatened species ?
Answer:
- Taking measures to protect their natural habitats.
- Creating awareness at community levels.
- Strict implementation of National Wild life Protection Act. would help these species.
- Prohibition of human activities in their habitats.
Question 9.
Collect the pictures of flora and fauna of Pachrnarhi biosphere reserve.
Answer:
Question 10.
Collect the pictures of endangered species of Satpura National Park.
Answer:
Question 11.
Give some examples for the threatened wild animals.
Answer:
- Black buck
- White eyed buck
- Elephant
- Golden cat
- Pink headed duck
- Gharial
- Marsh crocodile
- Python
- Rhinoceros
- Loris
Question 12.
Write a short note on Satpura National Park.
Answer:
- Satpura National Park is the first reserve forest of India.
- The finest Indian teak is found in this forest.
- In Satpura National Park, tigers are conserved and a significant increase in the population of tigers has been seen here.
- Animals like wild buffalo, barasingha, elephants are also conserved in this national park.
Extra Questions of Conservation of Plants and Animals Class 8
Question 1.
How do we depend on forests ?
Answer:
- Forests play a key role in maintenance of ecological balance.
- Forests absorbs a large amount of Carbondioxide and Particulate Matter (CPM) and keep the air clean. They serve as lungs of our earth.
- Forests are the natural sources of a variety of timber yielding plants and forests products like cane, resins, lac, fruits, nuts and honey.
- Forests provide us with cool breeze which helps in the rainfall.
- They are the natural habitats for wild animals they serve as biosphere reserves.
Question 2.
What steps do you take to stop deforestation ?
Answer:
- We should stop cutting of forests for farming and industrial purpose.
- Planting trees like Tamarind, Amla, Tangedu, Subabul, Bamboo in rural areas.
- Measures should be taken to conserve soil moisture by constructing checkdams and bundhs.
- Measures should be taken to improve forest productivity by planting fruit and nut bearing plants.
- Measures should be taken reforestation in order to maintain sustainability of forests.
Question 3.
Prepare some slogans or a pamphlet to make aware of people about conservation of biodiversity.
Answer:
Slogans:
- Save tree – Save other lives too.
- Save the lungs of the earth.
- Be kind towards biodiversity.
- Reduce pollution.
- Protect Nature, it protects us.
- Nature is for human’s need not for his greed.
- Hunting of wildlife is a crime.
- Forest is our life.
Question 4.
What are the consequences of deforestation ?
Answer:
- Change in rainfall pattern.
- Increase in green house gases.
- Loss of wildlife habitats.
- Increase in soil erosion.
- Change in soil properties leads to decrease in soil fertility.
- Massive floods.
- Global warming.
- Severe droughts.
Question 5.
What are the measures to be taken to conserve biodiversity ?
Answer:
- Strict implementation of forest laws to stop deforestation.
- Human activities like grazing, poaching, capturing of apjmals or collection of firewood, medicinal plants etc., are strictly not allowed in protected areas.
- Reduce the usage of chemical pesticides.
- Efforts should be made to substitute chemical fertilizers with organic fertilizers.
- Measures should be taken to reduce pollution from industries.
- Eco friendly fuels like CNG, LPG should be used in automobiles.
- Reforestation should be done in deforested areas.
- Green cover should be developed in vacant and waste lands to prevent soil erosion and desertification.
Question 6.
We have already caused tremendous damage to our forest. How can we retain our green wealth for future generations ?
Answer:
- The answer to deforestation is Reforestation. It is restocking of the destroyed forests by planting new trees.
- We should plant at least as many trees we cut. Reforestation can take place naturally also.
- If the deforested area is left undisturbed, it reestablishes itself.
- If we have to retain our green wealth for future generations, plantation of more trees is the only option.
- In India we have Forest (Conservation) Act. This act is aimed at preservation and
conservation of natural forests and meeting the basic needs of the people living in or near the forests. - Conserving the biodiversity in a wider perspective is utilizing the forest resources judiciously without affecting the ecosystem. So that we can be conserved biodiversity and on earth survive forever.
Question 7.
“Nature is for human’s need, not for the greed”. Support your answer.
Answer:
- We usually think of how to utilize nature for our own benefits. We never think of what to do to conserve nature.
- The existence of biodiversity in nature teaches us that every plant and animal weather useful or not has right to live on earth.
- If we want to protect the biodiversity on our planet, first we must be a part of conservation.
- Human being is not only a part of nature, he is not the whole. If we protect nature the nature protects us.
- This earth belongs to all animals and plants and every organism have equal right to live.
- Human beings must be sensitised in this aspect to protect biodiversity, utilizing the forest resources judiciously.
- Nature is for human’s need, but not for his greed. So protect nature by protecting plants and animals, without any destruction.