List any four changes you would like to incorporate in your lifestyle in a move towards a sustainable use of available resources in our country....

We shall use LPG/CNG gas or electricity for heating our food because these are efficient ways of supplying energy. Thermal efficiency of the energy source is large, there is less...

Three methods of producing magnetic field are as follows:  Will move in public transport system to conserve petrol.  Instead of coal or natural gas, will prefer to use...

Let C denote the set of people who like cricket, and T denote the set of people who like tennis  ∴ n(C ∪ T) = 65, n(C) = 40, n(C ∩...

We would use a microwave oven for heating the food as it heats uniformly and clearly without any loss in its nutritional value.

(i) Five things that I have done over the last one week to conserve our natural resources are: (a) Saved electricity by switching off unnecessary lights. (b) Repaired leaky taps for saving...

I would incorporate the maximum of the three R's, i.e., reduce, recycle and reuse in my lifestyle in a move towards sustainable use of our resources.

(i) Save electricity by switching off unnecessary lights and fans. (ii) Reuse of used envelopes, plastic bottles. (iii) Opt for carpool. (iv) Cycling to school.

Reasons for conservation :  (a) The strong dependence of industry and agriculture upon minerals.  (b) The process of mineral formation is slow.  (c) They are non-renewable Methods to conserve :  (a) Minerals should be used...

(i) excrete small amount of urine. (iii) excrete concentrated urine.

Following efforts have to be made to use mineral in a planned and sustainable manner: (i) Recycling of metals: We should recycle the metal or metal-made products to prevent its scarcity. For...