Question

1. Which of the following material cannot be added
in a composting pit to prepare compost?
(a) Animal wastes.
(b) Plastic cups.
(c) Plant and household waste such as fruit and
vegetable peels.
(d) Red worms.
2. The metal which can be extracted from the cinnabar
15
(a) Na
(b) Mn
(c) Al
(d) Hg​

Answer 1

Answer:

question 1: plastic cups

question 2: Mercury Hg