Conservation of Biodiversity
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Deforestation and its Consequences
SubtopicDeforestation and its Consequences under Conservation of Biodiversity for Grade 8 CBSE.
Preview questions (no answers)
- 1.
Deforestation leads to an increase in the level of carbon dioxide () in the atmosphere, which traps heat and results in global warming. According to the flowchart, what is a major consequence of the resulting increase in Earth's temperature?
A.Decrease in the level of sea water
B.Melting of glaciers and polar ice caps
C.Increase in the total forest cover
D.Decrease in the concentration of greenhouse gases
- 2.
Why is the topsoil considered very important for plants?
A.It is hard
B.It contains stones
C.It is rich in humus and nutrients
D.It is very deep
- 3.
What is the relationship between deforestation and soil moisture?
A.Deforestation increases soil moisture
B.Deforestation decreases soil moisture
C.Deforestation does not affect soil moisture
D.Deforestation makes soil underwater
Download the worksheet for Conservation of Biodiversity - Deforestation and its Consequences to practice offline. It includes additional chapter-level practice questions.
Biosphere Reserves, Wildlife Sanctuaries, and National Parks
SubtopicBiosphere Reserves, Wildlife Sanctuaries, and National Parks under Conservation of Biodiversity for Grade 8 CBSE.
Preview questions (no answers)
- 1.
In which zone of the Biosphere Reserve is limited human activity like research and education permitted?
A.Core Zone
B.Buffer Zone
C.Transition Zone
D.Central Zone
- 2.
Dinosaur fossils were found in which of these areas, showing species can become extinct?
A.Satpura National Park
B.Pachmarhi Biosphere Reserve
C.Both A and B
D.None of these
- 3.
The rock paintings in Satpura National Park depict:
A.Modern machines
B.Men fighting, hunting, and dancing
C.Alien spaceships
D.Undersea life
Download the worksheet for Conservation of Biodiversity - Biosphere Reserves, Wildlife Sanctuaries, and National Parks to practice offline. It includes additional chapter-level practice questions.
Endemic Species and Red Data Book
SubtopicEndemic Species and Red Data Book under Conservation of Biodiversity for Grade 8 CBSE.
Preview questions (no answers)
- 1.
Study the provided flowchart. Based on how the information is organized, which statement correctly describes the structure of the Red Data Book?
A.It combines all threatened organisms into one single alphabetical list.
B.It maintains separate records for plants, animals, and other species.
C.It is exclusively used for tracking animals and excludes plant data.
D.It only keeps records for species that are already completely extinct.
- 2.
What happens when the natural habitat of an endemic species is cleared for a new highway?
A.The species will quickly find a new home in a different country.
B.The species may be pushed toward extinction as its unique home is lost.
C.The species will start eating different food and survive.
D.The species will increase in number because of more sunlight.
- 3.
The Red Data Book helps scientists identify which species are in need of ______.
A.Culling
B.Conservation
C.Exclusion
D.Exporting
Download the worksheet for Conservation of Biodiversity - Endemic Species and Red Data Book to practice offline. It includes additional chapter-level practice questions.
Migration and Reforestation
SubtopicMigration and Reforestation under Conservation of Biodiversity for Grade 8 CBSE.
Preview questions (no answers)
- 1.
When we save paper, we are indirectly helping to ________.
A.Conserve biodiversity
B.Build more roads
C.Reduce the number of birds
D.Increase desert area
- 2.
Reforestation can lead to an increase in ________ levels.
A.Pollution
B.Precipitation (Rainfall)
C.Temperature
D.Carbon monoxide
- 3.
Which of the following contributes to the reduction of the greenhouse effect?
A.Cutting forests
B.Reforestation
C.Using more paper
D.Industrialization
Download the worksheet for Conservation of Biodiversity - Migration and Reforestation to practice offline. It includes additional chapter-level practice questions.