Question

Match column I with column II, and choose the correct combination from the options given below.

	Column-I (Waste)		Column-II (Disposal)
a	Solid wastes	1	Incinerators
b	Hospital wastes	2	Sanitary landfills
c	Electronic wastes	3	Recycling
d	Radioactive wastes	4	Buried within rocks

• A. $\begin{array}{cccc}\text{a}& \text{b}& \text{c}& \text{d}\\ \text{2}& \text{1}& \text{4}& \text{3}\end{array}$
• B. $\begin{array}{cccc}\text{a}& \text{b}& \text{c}& \text{d}\\ \text{3}& \text{4}& \text{1}& \text{2}\end{array}$
• C. $\begin{array}{cccc}\text{a}& \text{b}& \text{c}& \text{d}\\ \text{4}& \text{3}& \text{2}& \text{1}\end{array}$
• D. $\begin{array}{cccc}\text{a}& \text{b}& \text{c}& \text{d}\\ \text{2}& \text{1}& \text{3}& \text{4}\end{array}$

Answer 1

The correct option is D $\begin{array}{cccc}\text{a}& \text{b}& \text{c}& \text{d}\\ \text{2}& \text{1}& \text{3}& \text{4}\end{array}$

Solid wastes-Sanitary landfills
In a sanitary landfill, solid waste is compacted to reduce size and then dumped in a depression or trench. This is then covered with dirt.

Hospital wastes -Incinerators
Hospital-generated waste is disposed of in an incinerator which is a furnace for burning waste, as it reduces waste volume and destroys dangerous substances.

Electronic wastes- Recycling
Recycling is the best method for the disposal of electronic waste, provided it is carried out in an environmentally friendly manner.

Radioactive wastes- Buried within rocks
Radioactive waste is disposed of by burying them deep in the earth’s surface, this is done to ensure their safe disposal.

Final answer
(C) $\begin{array}{cccc}\text{a}& \text{b}& \text{c}& \text{d}\\ \text{2}& \text{1}& \text{3}& \text{4}\end{array}$