Question 2 :
Safai karamcharis collect the garbage in trucks and take it to a low lying open area, called a __________.
Question 3 :
Fill in the blanks.
The process related to 'Old newspaper' and 'Paper bags' is _____.
Question 4 :
Use of recycled plastic bags to keep food items could be harmful for our health. YES OR NO?
Question 6 :
Which of the following activities does not reflect responsible behaviour with regard to waste disposal?
Question 7 :
This method of preparing compost with the help of redworms is called?
Question 8 :
Should we prefer to use paper bags rather than polythene bags?
Question 9 :
State TRUE or FALSE: Redworms not survive in very hot or very cold surroundings. They do not need moisture around them.
Question 10 :
Fill in the blanks.
A garbage collector separate items mentioned below in the garbage into red, green and blue containers for their transfer to landfill, composting pit, and recycling unit respectively. Egg shells are transferred to _____.
Question 12 :
The rotting and conversion of some materials into manure is called _______.
Question 14 :
Fill in the blanks.
If you dump kitchen waste in a pit, it may, after sometime _____.
Question 15 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c678f59b460d7261e605.PNG' />
The pie charts A and B shown in the above figure are based on waste segregation method adopted by two families X and Y respectively. Which of the two families X or Y do you think is more environmentally conscious?
Question 16 :
State True or False:
When insecticides, motor oil, paints are poured down the drain, it kills useful microbes that help purify water.
Question 19 :
State TRUE or FALSE: A redworm can eat food equal to its own weight, in a day.
Question 23 :
Fill in the blanks.
The method of preparing compost with the help of earthworms is called _____.
Question 25 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c67af59b460d7261e607.PNG' />
Read the poem given above and then answer the questions from the information gathered from the book or elsewhere. Name the two kinds of waste that need to be separated from each other in two different waste bins.
Question 26 :
State True or False:
When cooking medium is made to flow down a drain, it may clog pores in soil and block pipes.
Question 28 :
Is it possible to reduce the problems relating to disposal of garbage ?
Question 30 :
Beera, a farmer would clear his field everyday, and burn dry leaves fallen on the ground. After sometime he found that those living huts near his field were suffering from cough and breathing problems. Suggest an environment friendly way to dispose the dry leaves.