Olympiad – Class VI – Science - Bio - Garbage and their Disposal

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Question - 1

Which of these includes culturing of earthworms and redworms?

  • A Pediculture
  • B Vermicomposting
  • C Sericulture
  • D  Pisciculture

Question - 2

In which of these places bio-degradable waste is dumped and converted to organic manure?

  • A Rivers
  • B Ponds
  • C Lakes
  • D Pits

Question - 3

Observe and identify the figure given below

  • A bio-degradable waste
  • B danger
  • C decomposting
  • D recycled and reused

Question - 4

Why should the inorganic garbage be not burnt?

  • A It pollutes the environment
  • B Soil becomes warm and dry
  • C Decomposers in the soil get destroyed
  • D Water in the soil get dried up

Question - 5

Observe some of these items given below.

Which of these items cannot be recycled

  • A P
  • B Q
  • C R
  • D S

Question - 6

The exposed garbage bin encourages the spread of

  • A non-infectious diseases
  • B deficiency diseases
  • C congenital diseases
  • D infectious diseases

Question - 7

Anish buried the following in a corner of his garden to dispose them off.
1. A broken egg shell
2. Pencil shavings
3. Dry leaves
4. Plastic carry bags
5. Fruit and vegetable peels
If the corner is dug up 5 years later, which of these is most likely to have remained the same?

  • A Dry leaves
  • B A broken egg shell
  • C Plastic carry bags
  • D Fruit and vegetable peels

Question - 8

Some things were buried in wet ground. Several years later they were dug up. Which thing is most likely to have stayed
the same?

  • A A newspaper
  • B A paper cup
  • C A potato peel
  • D A plastic glass

Question - 9

Which of the following is the best way of keeping our surroundings clean?

  • A Throwing garbage on the road
  • B Letting waste water to flow on the road.
  • C Throwing garbage into covered bins
  • D Spitting in the open .

Question - 10

Which of the following get completely decompose

  • A Left over food
  • B Broken glass
  • C Aluminium wrapper
  • D Polythene bags