Advertisements
Advertisements
Question
Solution
APPEARS IN
RELATED QUESTIONS
Name the various modes of waste disposal.
Give reason for the following :
Broken glass utensils are a kind of non-degradable waste.
The question has four options. Choose the correct answer:
Sewage is broken down in
The question has four options. Choose the correct answer:
A huge quantity of sewage is dumped in a river. The BOD will
Differentiate between biodegradable and non-biodegradable substances. Cite examples.
Beera, a farmer would clear his field every day, and burn dry leaves fallen on the ground. After some time he found that those living in huts near his field were suffering from cough and breathing problems.
(i) Can you explain why?
(ii) Also suggest an environment-friendly way to dispose of the dry leaves.
Put a tick (√) against the garbage items given in Table 16.1 which could be converted into manure. Put a cross (×) against the others.
| Garbage Items | Make manure or not | |
| (i) | Eggshells | |
| (ii) | Straw | |
| (iii) | Dry flowers | |
| (iv) | Pebbles | |
| (v) | Broken pieces of glass | |
| (vi) | Nails and screws | |
| (vii) | Plastic bangles | |
| (viii) | Leftover food | |
| (ix) | Steel broken vessel | |
| (x) | Dead animals |
What happens when
Tea leaves, cotton swabs and old soft toys are thrown into the drain.
Choose the odd one out from the following terms and name the category to which the others belong:
Define the following term:
Waste
