Coal And Petroleum

i. Solar energy or wind energy or tidal energy or any other source of renewable energy.

Explanation: Inexhaustible resources of energy are those which are abundantly available in nature and can be used for an infinite interval of time. Recall petroleum is also exhaustible resource because it is limited and takes a very long time to get formed again.

ii. Synthetic dyes, drugs, explosives, perfumes, plastic, paints and roofing materials.

Explanation: informative question. Information as given in the textbook. Use of coke is in the manufacture of steel. Similarly, the use of coal tar is in making above listed materials

iii. Manufacturing of fertilizers.

Explanation: CNG used in making fertilizers like Petrochemicals used in making Plastics.

iv. toxic products of paints made from petroleum and heavy metals.

Explanation: carbon di oxide is the reason for global warming. By similar logics, toxic products that are released from the paints made from petroleum are the reason for nausea and many other diseases.

(i) natural resource — (e) water

reason: water is found in nature in abundance and is not synthesized synthetically by humans hence it is a natural product.

(ii) coal — (a) carbonization

reason: the process of conversion of dead vegetation into coal is called carbonization. In this way it is most appropriately related to coal

(iii) petrochemical product — (b) plastic chair

reason: petrochemicals are used in making plastics. So it is related closely to chair made of plastics

(iv) natural gas — (c) Krishna, Godavari delta

reason: Natural gas is found in India in this delta.

(v) petroleum — (d) plankton

reason : petroleum was formed by remnants of tiny organisms called plankton. Hence this is the answer that is most closely related with petroleum.

(i) – (a) natural gas.

Reason: Natural gas combustion in efficient ways and enough supply of oxygen release very less harmful material as compared to petrol, coal or kerosene. The Sulphur, nitrogen and carbon oxides are released around 50 to 60 percent lesser than petrol and other sources.

(ii) - (a) carbon

reason: Coal is formed from the dead vegetation which lived many years ago. Since most of the nitrogen and water get decomposed or fixed in their cycles, coal contains mainly organic matter containing carbon.

(iii) - (a) paraffin wax.

Reason: Paraffin wax mixed with turpentine is used in shoe polish. It cleans the shoes and also strengthens the leather of shoes.

i. Coke was used in manufacture of steel.

Reason: used to strengthen the pure iron used in steel

ii. The bi product of coal used in synthetic dyes and paints is coal tar.

Reason: informative question. Information in book.

iii. Coal was formed in areas where large amounts of Vegetation was buried under the earth.

Reason: vegetation buried for very long time (millions of years) face extremely high temperature and pressure and gives coal.

iv. Carbon di oxide gas which causes climate change and global warming.

Reason: carbon di oxide traps sun ’s heat and increases the temperature of the earth. This is what global warming is.

Coal tar is mainly used for road surfacing.

The black thick liquid which one might have seen where roads are being laid is the coal tar. It is a mixture of about 200 different petroleum substances and increases life span of roads.

Certain organisms named plankton were found in seas and forests. Their remnants and dead bodies were buried deep into the earth for a very long time (million of years). Under very high temperature and pressure for such a long time, these fossils were transformed into petroleum.

Although pollutants in both the fuels are almost similar to a kind, but in CNG the pollutants are released in a lesser amount and hence it is less polluting than Petrol or diesel.

From the data collected, we can see that there is a huge difference between various families in the rates of consuming fuel even though they might be facing similar conditions or having some lifestyles.

Let's consider first person Ram, he doesn’t have any vehicle of his own and hence he only spends on fuel for cooking purposes.

In case of Shyam, he uses a smaller vehicle which causes him to pay 300 on fuel other than cooking.

Where comes the important point of discussion is a case of Ramesh and Suresh. Both have same lifestyles and resources but still, there is a huge difference in their expenses towards fuel. The reason is that Suresh though having a car himself does use car pooling which not only saves his money but also helping in reducing pollution along with saving of fuel.

a) There is no continuous increment or decrement of shortage percentage of power. The shortage percentage of power in India decreased from 1991 to 1992. It was increased from 1992 to 1993. Again decreased from 1993 to 1995. Then the shortage percentage increased from 1995 to 1997.

b) If shortage percentage of power increases year by year, then

(i) This results in fuel crisis

(ii) This results in economical crisis. (As the fuel cost increased with raising demands.)

(iii) The increase of shortage percentage of power indicates over consumption of power or energy sources. This leads to pollution.

Kakinada Krishna Godavari Basin → gas reserves

Coal and petroleum are exhaustible resources. Moreover, we have also seen that using them leads to various environmental problems like global warming, pollution and etc. These two prime reasons motivate humans to look for some alternative energy sources like Solar energy and wind energy which are inexhaustible and also nonpolluting. Such type of resources is very important for the sustainable development of the country. Hence efforts for the search of such resources is highly appreciated by me.

Using a bicycle for the nearby places is one of the steps that we all should see to check overuse of petrol energy and environmental pollution. Yes. Harshit's opinion is very good. We can save more fuel by using cycle instead of a bike for going to nearby places. Petrol and Diesel are nonrenewable energy resources. If the usage of such fuels continues in the present ratio, there will occur an energy crisis in the coming future. Also causes environmental pollution. So we have to save fuels. So I appreciate Harshith and I too follow his advice

Coal and petroleum are exhaustible resources. Moreover, we have also seen that using them leads to various environmental problems like global warming, pollution and etc. Hence people need to look for the new resources so that we do not run out off energy and also can save our environment.

I will take following measures:-

1. I will use my vehicle only when it is really important to do so.

2. I will always keep my vehicle maintained by regular servicing. Unmaintained vehicles consume more fuels and give more smoke.

3. I will keep my vehicle engine off while red signals

4. I will use natural gas instead of petrol as a fuel.

Crude oil and refined fuel are nonsolvable in water i. e. the float on the surface of the water. This leads to most of the aquatic life difficulty in breathing and surviving, which in many ways lead to bad consequences in the whole ecosystem in long run. Moreover, water gets polluted and these fuels may also circulate in rain cycle to cause acid rains. Hence such accidents are really harmful to the environment

Yes, the fact is very true. As we have seen in this chapter, CNG and LPG release harmful materials like carbon di oxide, carbon mono oxide, Sulphur and nitrogen oxides in lesser amounts than petrol and diesel or oils. They give almost same energy comparing to petrol causing less pollution. But fact remains that it also leads to some pollution whether less or more and also it is exhaustible. So such fuels are better than that of petrol and diesel for automobiles but are not something perfect to be used for maintaining ecological balance.