Class 8 Conservation Of Plants And Animals CBSE Questions & Answers

Class 8 · Conservation Of Plants And Animals

This is Science Class 8 Conservation of Plants and Animals CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Loss of corals due to environmental stresses has been referred to as:
  • A
    preaching
  • B
    bleaching
    Correct
  • C
    sampling
  • D
    leaching
2
Read the following statements :i) Honey bees are unimportant for ecological services.ii) Honey bees act as pollinators to a huge variety of agricultural crops.
  • A
    both are correct
  • B
    both are wrong
  • C
    statement i) is correct but ii) is wrong
  • D
    statement ii) is correct but i) is wrong
    Correct
3
Ecosystem stores an essential element to regulate climate of the world :
  • A
    Oxygen
  • B
    Carbon
    Correct
  • C
    Nitrogen
  • D
    Hydrogen
4
Read the following statements :i) Monarch butterfly is a migratory species.ii) Monarch butterfly requires a large area to exist.
  • A
    both are wrong
  • B
    both are correct
    Correct
  • C
    statement ii) is correct but i) is wrong
  • D
    statement i) is correct but ii) is wrong
5
By spraying pesticides ruthlessly in the field we may :
  • A
    lose insect pollinators
    Correct
  • B
    decrease chances of crop failure
  • C
    increase cases of pollination
  • D
    gain new methods of agriculture.
6
Read the following statements :i) Biodiversity declines from equator to the poles.ii) Biodiversity increases from equator to the poles
  • A
    statement ii) is correct but i) is wrong
  • B
    both are correct
  • C
    both are wrong
  • D
    statement i) is correct but ii) is wrong
    Correct
7
To prevent biodiversity loss we :
  • A
    must create protected areas
  • B
    can stop using fossil fuels
  • C
    must regulate climate changes
    Correct
  • D
    can discuss and prevent vehicular pollution
8
Read the following statements :i) A biodiversity hotspot is a protected area with only endangered species.ii) Biodiversity hop spot is a region with high level of endemic species.
  • A
    both are wrong
  • B
    statement i) is correct but ii) is wrong
  • C
    both are correct
  • D
    statement ii) is correct but i) is wrong
    Correct
9
Among the following, endemic flora of pachmarhi biosphere reserve includes:
  • A
    Sal
  • B
    Wild mango
  • C
    both Sal & Wild mango
    Correct
  • D
    Indian giant squirrel
10
Read the following statements :i) Genetic diversity is of higher level as compared to species diversity.ii) Ecosystem diversity is of higher level as compared to genetic diversity.
  • A
    both are correct
  • B
    statement ii) is correct but i) is wrong
    Correct
  • C
    statement i) is correct but ii) is wrong
  • D
    both are wrong
11
Abiotic components of an ecosystem includes:
  • A
    rodents
  • B
    rhizopus
  • C
    rainfall
    Correct
  • D
    rhizobium
12
Read the following statements :i) Conservation protects natural resources.ii) Conservation prevents wastage of natural resources.
  • A
    both are correct
    Correct
  • B
    statement i) is correct but ii) is wrong
  • C
    statement ii) is correct but i) is wrong
  • D
    both are wrong
13
Even protected forests are unsafe due to our:
  • A
    insecurity
  • B
    passion
  • C
    greed
    Correct
  • D
    anger
14
Read the following statements :i) Biodiversity provides many ecological services.ii) Biodiversity doesn
  • A
    statement i) is correct but ii) is wrong
    Correct
  • B
    both are correct
  • C
    both are wrong
  • D
    statement ii) is correct but i) is wrong
15
One major cause of extinction of organisms can be:
  • A
    lack of conservation methods
  • B
    intraspecific competition
  • C
    disturbances in their habitat
    Correct
  • D
    increase in their number