Question

List different type of industries in the

States and collect information about

them and present in tabular form 1)

Types of raw materials used

2) disposal of wastes generated. 3)

Classify these industries as polluting or

environment friendly and 4) suggest

possible ways of reducing pollution

caused by

these units.​

Answer 1

Explanation:

Here are our top tips for describing a photo or a picture in an exam.

Do:

Don't: Panic if you don't know the words for all the things in the picture. ...

What is in the picture? In the picture I can see ... ...

Say what is happening with the present continuous. The man is ...ing. ...

Where in the picture? ...

If something isn't clear.

Answer 2

${answer}$

The combined effects of population explosion and changing modern living standard have had a cumulative effect in the generation of a large amount of various types of wastes. Solid waste can be classified into different types depending on their sources:

a. Municipal Solid Waste (MSW):

The term municipal solid waste (MSW) is generally used to describe most of the non-hazardous solid waste from a city, town or village that requires routine collection and transport to a processing or disposal site, Sources of MSW include private homes, commercial establishments and institutions, as well as industrial facilities.

ADVERTISEMENTS:

However, MSW does not include wastes from industrial processes, construction and demolition debris, sewage sludge, mining waste or agricultural wastes. MSW is also called as trash or garbage. In general, domestic waste and MSW are used as synonyms.

Municipal solid waste contains a wide variety of materials. It can contain food waste (like vegetable and meat material, leftover food, eggshells etc, which is classified as wet garbage as well as paper, plastic, tetra-pack, plastic cans, newspaper, glass bottles, cardboard boxes, aluminium foil, meta items, wood pieces, etc., which is classified as dry garbage. The different types of domestic wastes generated and the time taken for them to degenerate is illustrated in the table given below.

Table. Domestic wastes and their degeneration time:

Common domestic wastes

Approximate time taken for degeneration

Organic kitchen waste vegetables, fruits

1-2 weeks

Paper, cardboard paper

15 days-1 month

Cotton clothes

2-5 months

Woolen clothes

about a year

Metal cans, tin, aluminium

100-500 years

Plastics

1 million years

India’s urban population slated to increase from the current 330 million to about 600 million by 2030, the challenge of managing municipal solid waste (MSW) in an environmentally and economically sustainable manner is bound to assume gigantic proportions.

The country has over 5,000 cities and towns, which generate about 40 million tonnes of MSW per year today. Going by estimates of The Energy Research Institute (TERI), this could well touch 260 million tonnes per year by 2047.