CBSE Questions for Class 8 Biology Conservation Of Plants And Animals Quiz 1 - MCQExams.com

• There are 21 tiger reserves in India. To save the tigers from extinction, Project Tiger was launched on April 1, 1973 in India. 
• This project planned to create tiger reserves in selected areas of India. 
• Due to this effort, considerable improvement has been observed in the tiger population.

The Keoladeo national park previously known as the Bharatpur national park is located in district Bharatpur of Rajasthan. The Siberian cranes, which are migratory birds from Siberia, migrate here for breeding every winter when the temperature in Siberia is very low.

So, the correct answer is option B.

• A wildlife sanctuary is a facility where animals are brought to live and be protected for the rest of their lives.
• Wildlife sanctuaries are the places that protect species from hunting, predation, etc. in their natural environment.
• Flora (plants) and fauna (animals) both are conserved in it.
• Wild animals cannot survive if their natural habitat is disturbed and definitely it is prohibited in wildlife sanctuaries.

• Endangered species are species facing a high risk of extinction in the wild soon because of a decrease in their habitat, excessive predation, or poaching. 
  
• The list of endangered species of plants and animals is given in the Red data book maintained by IUCN (International Union for Conservation of Nature).

• Deforestation is the process of cutting or removal of forests to fulfil the need of the population. 
• It has many negative impacts on the environment such as loss of species, soil erosion and reduced rainfall. 
• The tree absorbs water from the soil for photosynthesis and produces water vapour that is released into the atmosphere which in turn helps in rainfall. 
• If there will be fewer trees then rainfall will also decrease.

• Endemic species are likely to develop on biologically isolated areas such as islands, because of their geographical isolation. 
• Endemic plants are special because they are found exclusively in a particular area. They are not naturally found anywhere else.
• This makes them both incredibly special and more vulnerable to extinction. 
• As we only found them in certain locations, they require special conservation efforts.

• The dwelling of a species in a particular area depends on the physical, biological, and climatic conditions. 
• The adverse conditions, because of any climatic variations or scarcity of food forces the birds to migrate to faraway areas in search of better living conditions. 
• The migration of the species may lead to a decrease in the biodiversity of that region.

• Red Data Book is a catalogue (a complete list) that is published by the International Union for Conservation of Nature (IUCN). 
• The Red Data Book keeps a record of all the endangered plants and endangered animals.
  
• So, the correct answer is option 'C'.