Class 6 Science

Chapter 16

Garbage in, Garbage out


1. What is the conversion of plant and animal waste as well as kitchen waste into natural fertilizers?

i) Preparation of cassava manure

ii) Preparation of compost

iii) waste

Answer: ii) Preparation of compost


2. What is the English form of the word 'repetition'?

i) Recycling

ii) Repaid

iii) Return

Answer: i)  Recycling


3. What is the method of composting kitchen waste using red spiders?

i) Preparation of compost

ii) Preparation of red earthworms

iii) Manure preparation

Answer: iii)  Manure preparation


4. The What needs to be done with food leftovers in the house?

i) he throwing in the pond

ii) The preparation of compost

iii) neither

Answer: ii) Preparation of compost


5. There are no red spiders.

i) mouth

ii) tongue

iii) teeth

Answer: iii) Teeth


7. How much food does a red spider eat in a day?

i) half his own weight

ii) equal to their own body weight

iii) One-fourth of one's body weight

Answer: ii)  Equal to the weight of one's own body


8. What environment do red spiders live in?

i) In cold environments

ii) In hot environments

iii) In a slightly warmer and slightly cooler environment

Answer: iii)  In a slightly hot and slightly cold environment


9. Which of the following is the cleanest environment?

i) The urban environment

ii) The rural environment

iii) neither

Answer: ii)  Rural environment


10. The plastics are rotten

i) It doesn't go

ii) goes

iii) Both of the above

Answer: i) It doesn't go


11. What does plastic do to release harmful gases?

i) Heated it up

ii) They burned it

iii) Both of the above

Answer: iii) Both of the above


12. Should I use plastic bags to store food?

i) You don't have to

ii) ought

iii) It takes less

Answer: ii) Not necessary


13. What is the English form of the word 'compost'?

i) Compost

ii) Garbage

iii) Waste

Answer: i) Compost


14. When is enough dry leaf burnt in a city like Delhi?

i) In the rainy season

ii) In the springtime

iii) In the autumn

Answer: iii) In autumn


15. What is being done in the picture below?

i) Garbage piles are buried in pits

ii) Compost has been prepared

iii) Spider manure has been prepared

Answer: i) The garbage pile is buried in the pit


16. What is it called when some substances decompose into fertilizer?

i) Organic fertilizers

ii) Melting

iii) Decomposition

Answer: iii) Decomposition


17. What kind of garbage is usually used for disposal in blue garbage bins?

i) The rotten things

ii) Things that can be reused

iii) Both of the above

Answer: ii) Recyclable items


18) Which of these is a cause of environmental pollution?

i) Garbage

ii) Waste

iii) Recycling

Answer: i) Garbage


19. Is it right to burn the dry leaves?

i) Should be

ii) It's inappropriate

iii) neither

Answer: ii) Inappropriate


20. What is produced by burning dry leaves?

i) Harmful smoke

ii) Compost fertilizer

iii) Organic fertilizers

Answer: i) Harmful smoke