Question

wU 1,5 gas to form Ag, S which is black in colour.
Answer Q. No 17 to 20 contain five sub-parts each. You are expected to answer any four sub-parts in these questions.
17. Read the following and answer any four questions from 17 (1) to 17 (v).
The introduction of plastic cups was hailed, when tea in trains was served in these plastic glasses. But at that time, no one
aware the impact caused by the disposal of million of these cups on a daily basis. Plastic is non-biodegradable as it canno
broken-down into smaller particles by the action of bacteria. Some time back, Kulhads, that is, disposable cups made up of
were suggested as an alternative. But Kulhads are not being used in trains now. Now, disposable paper-cups are being used.
are a lot of advantages of disposable paper-cups over disposable plastic cups.
(1) Which of the following is biodegradable?
(a) Paints
(b) Aluminium (c) Plastic bag
(d) Peelings of fruits and vegetables
(ii, Which of the following is a wrong statement?
(a) Biodegradable waste and non-biodegradable waste should be discarded separately.
(b) Plastic is non-biodegradable.
(c) Biodegradable waste is not harmful.
(d) Leather purses are biodegradable.
(iii) Which of the following is non-biodegradable?
(b) Nylon
(a) Wool
(d) Tea leaves
(c) Animal bones
(iv) Which one of the following will undergo fastest bio-degradation?
(c) Mango peel
(b) Wood
(d) Mango pulp
(a) Mango seed
v) Nowadays, disposable paper cups are being generally used in trains for serving tea, coffee, soup etc on daily basi
because these are:
(b) Non-biodegradable (c) Washable
(d) Reusable​

Answer 1

Answer:

Answer 1) Option d,

Answer 2) Leather purses are biodegradable

Answer 3) Nylon

Answer 4) Mango Peel

Answer 5) Reusable