Global warming is real and has been with us for sometime, increasingly during the past two decades, but gradually for more than a hundred years. The reality of it is seen in direct temperature measurements and also in the melting of glaciers in low latitudes, permafrost decay in Alaska and the decrease in sea-ice cover in Arctic.

i) a) Planting trees around the factory.
b) Walls should be equipped with sound absorbent material.
c) Workers should be equipped with ear-muffs
ii) a) impairing hearing ability
b) b) Sleeplessness, increased heart beat.

(a) polythene packets
(b) vegetable peels
(c) Dry cells, blades
(d) aluminium foils
(e) Pieces of glass etc. Polythene packets can be avoided by using cotton bags, jute bags etc.(or any other waste with reason)

Introduced for their lovely flowers - have caused havoc by their excessive growth and causing blocks in our waterways.

Wastes from agricultural field /& Industrial effluents, because they are non-Biodegradable and toxic.

i) Increase in the level of DDT with each trophic level.
ii) Biomagnification.

a) Global warming due to increase of green- house gases like CO₂ , methane etc.
b) Excess use of fossil fuel, and deforestation
c) Reforestation, encouraging use of non-conventional energy sources.

Organic farming in which no use of chemicals like fertilizers and pesticides . It is a Zero- waste procedure where waste products of one process are cycled as nutrients for other processes.

Chemical fertilizers/pesticides --non -biodegradable, enter into food chain through vegetables/grains, causes biomagnification in humans. In organic farms manure is used, whose produce causes no harm to human health.

Some plants are considered sacred and propagated for the religious ceremonies. In some tribes, axe is not used because of the religious sanctity related to them. In some areas, temples are generally surrounded by deodar forests and protected by the people of that area.
A number of water bodies are also held sacred, e.g. Pushkar lake in Rajasthan. Their aquatic flora and fauna are protected from exploitation.