Class 7 Forests Our Lifeline CBSE Questions & Answers

Class 7 · Forests Our Lifeline

This is Science Class 7 Forests Our Lifeline CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Medicine obtained from plant and used for treatment of malaria is
  • A
    Quinine
    Correct
  • B
    Penicillin
  • C
    Anacin
  • D
    Tetracycline
2
Carnivores obtain their food from
  • A
    Decomposers
  • B
    Producers
  • C
    Autotrophs
  • D
    Herbivores
    Correct
3
Depletion of forest is called
  • A
    Horticulture
  • B
    Deforestation
    Correct
  • C
    Plantation
  • D
    Aforestation
4
Humus in the soil
  • A
    Increase the water holding capacity of soil
    Correct
  • B
    Decrease the water holding capacity
  • C
    Maintain minerals ions
  • D
    Deplete the soil organism
5
which of the not prepared from the wood obtained from forest?
  • A
    Matchsticks
  • B
    paper
  • C
    Thermocol
    Correct
  • D
    Plywood
6
During photosynthesis, carbon dioxide is converted into
  • A
    Vitamins
  • B
    Oxygen
    Correct
  • C
    Protein
  • D
    Fats
7
Translocation is the process in which
  • A
    Water is transported to leaves
  • B
    Food prepared in leaves is transported to other parts
    Correct
  • C
    Food is prepared by the green leaves
  • D
    Water is lost in form of water vapour
8
In food chain, energy enters through
  • A
    Predators
  • B
    Autotrophs
    Correct
  • C
    Decomposers
  • D
    Consumers
9
Canopy is the
  • A
    Conical structure of tree top
  • B
    Uppermost part of plant
  • C
    Roof like structure formed by branches of tall trees
    Correct
  • D
    Thick covering of leaves
10
The plants having soft stem and generally annual are called
  • A
    Tendrils
  • B
    Herbs
    Correct
  • C
    Shrubs
  • D
    Tree
11
Decomposer are those microorganism that
  • A
    Breaks the complex organic matter
    Correct
  • B
    Produce food by photosynthesis
  • C
    Convert milk into curd
  • D
    Perform weathering of rock
12
Part of tree above the stem is called
  • A
    Crown
    Correct
  • B
    Branches
  • C
    Canopy
  • D
    Tips
13
Judicious use of forest is called
  • A
    Plantation
  • B
    Forest management
  • C
    Conservation of forest
    Correct
  • D
    Forestry
14
Saprophytes are also known as
  • A
    Decomposer
    Correct
  • B
    Nitrogen fixer
  • C
    Consumers
  • D
    Autotrophs
15
Forest is called dynamic identities because it
  • A
    Help in food chain
  • B
    Produce the food for living organisms
  • C
    Purify the air
  • D
    Contain a number of plants and animals
    Correct