Plastic production is increasing day by day in spite of the fact that plastic is harmful far the environment.

(a) Excessive use of fertilisers changes the chemistry of soil and kills useful microbes. (b) Excessive use of non-biodegradable chemical pesticides leads to biological magnification. (c) Extensive cropping causes loss of soil...

Here, l = 1.5 m, b = 1.25 m, h = 65 cm = 0.65 m.  Since the box is open at the top, it has only five faces.  (i) So, surface...

CO2 and Methane. CO2 levels are increasing due to burning of fossil fuels,leading to Global Warming.

The principle is authority and responsibility. No, the production manager cannot blame the foreman because he did not give him the authority to requisition tools and material from the stores...

(b) A cloudy day

(i) Excessive use of fertilisers changes the chemistry of soil and kills useful microbes. (ii) Excessive use of non-biodegradable chemical pesticides leads to biological magnification. (iii) Extensive cropping causes loss of soil...

Some harmful effects of agricultural practices on environment are:  (i) Excessive use of fertilisers changes the chemistry of soil and kills useful microbes.  (ii) Excessive use of non-biodegradable chemical pesticides leads to...

I walked about 7-8 kilometres at one time and I think I can walk as far as up to 15 kilometres at a time.

(d) Indonesia consists of 13,677 islands (nearly 14,000) and this country is 5000 miles from Torres strait. 4th largest country in Asia.

(i) More and more land is used for construction of factories, warehouses and shelters which have reduced the land under cultivation. (ii) Soil gets degraded by the use of pesticides, fertilizers,...