Question

What are the uses of biofule? What value the biofule products?

Answer 1

All biofuels and bio-based products come from “biomass”, a term that covers all living or recently living biological material which can be used as fuel or for industrial production. Examples include wood, corn, sugarcane, and manure. Biofuels can be separated into three basic categories:

a. Ethanol: primarily used in cars, ethanol is a type of alcohol and is most commonly made from corn or sugarcane. Based on sugars.
b. Biodiesel: a substitute for diesel fuel, which is used mostly in trucks in the US but also in an increasing number of diesel cars. Most commonly made from soybeans. Based on oils. 
c. Other biomass: mostly used for generation of electricity or heat. Examples: burning wood chips to boil water and create steam, which spins turbines and creates electricity; collecting methane from manure piles to generate heat or electricity

It is important to distinguish between two major energy needs in North America: transportation and electricity. 

Transportation: Cars and trucks run primarily on refined oil, and not on electricity. Although plug-in hybrid cars are in development, the auto fleet will continue to rely on liquid fuels for some time. Biofuels are today’s primary alternatives to oil.
Electricity: Our homes and businesses run on electricity, most of which is generated from coal or nuclear power. Solar power and wind turbines are today’s primary alternatives to coal and nuclear generated power.

While solar power and wind turbines are alternative sources of electricity, these technologies do not reduce our need for transportation fuels.

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Answer 2

Explanation:

5, Rosewood,

Four Bungalows,

Andheri (W)

Mumbai-400053

15th March 2013

Dear Ramesh,

I am very happy for you. You have done extremely well in your board examination. Your hard work has been rewarded.

Today you are standing at the threshold of your career. You have to take the right decision. Do not take up any stream blindly simply because of your friends or family pressure. Choose the stream of your own interest.

Since you are good in mathematics, I would advise you to take up science stream. This is my personal opinion. The final decision will be yours. Do inform me about your decision.

With love and affection,

Your brother

XYZ