English is the study of the English language. The goal is to improve communication skills by practicing listening, speaking, reading, writing, and understanding language rules like pronunciation, vocabulary, and grammar.
In 1962, a team of scientists produced a special radio station that had a range of fifteen moles. Even though communication was being accomplished in space at a range of more than a million times this distance, the new radio station caused must excitement among scientists. The reason: its power supply was ‘battery ‘made of bacteria. For the first time, practical amounts of electricity were being produced by a form of life and put to use.
‘biocell’, the new power supply had a liquid fuel containing tiny forms of life that changed the fuel directly into electric energy. This was far more than an interesting experiment. The biocell is being developed as producer of electricity for radios, for signals to guide ships, for lighting and for other uses. Thought the working biocell is only a few years old, some scientists feel that it will one day produce power cheaply as is now being done by other methods, and that the biocell will use materials that would otherwise be considered a waste. Early biocells were powered with sugar, but a wide range of fuels can be used. Work is being done using sea water to feed the bacteria.
Electricity from living cells is no new idea. Man experienced the strange ‘shock ‘produced by some fish even before electricity was really discovered. Then in time, there were other discoveries. Benjamin Franklin found that lightning in the sky was electricity. Lulgi Galvani found some electricity in the muscles and nerves of animals. Bust the African catfish produces far more electricity than most other living creatures. And another fish, the electric eel, well named, for it has an even greater electric charge. Research works also discovered that even humns produce small amounts of electricity in their bodies. Our hearts produce a very small amount that can be measured, so do our brains. The biocell is completely new in the field of power production and, as yet, no mass-produced models have begun to replace the older types of batteries. It might be wondered, and then what the excitement is all about.
A suitable title for the passage is Options:In the question below choose the most appropriate option opposite in meaning to the word(s) underlined:
The economic situation is responsible for the recent discord in many families
Options:Choose the most appropriate option nearest in meaning to the underlined word.
Although the manager is busy right now, he will be with you presently?
Options:Choose the option that best conveys the meaning of the underlined portion in the following sentence;
Mrs. Dada has been deserted by her husband because he feels she has a heart of stone
Options:In the question below choose the word(s) or phrase(s) which best fills the gap(s):
The train was to slow so i decided to _____ at the next stop
Options:Choose the most appropriate option for each group for questionsAlice, a small fragile-looking Ugandan mother, is dying of AIDS. She lives with her son and daughter in a tin-roofed shack on the .....1... of Kampala. When her husband died of AIDS in 1987, Alice discovered she was HIV positive. Frequent ...2..... of sickness forced her to give up her embroidery job. She was so depressed that she just wanted to eat. ....3.... by a neighbour, the mobile care unit from Nsambya hospital went to her home. They convinced her to start taking proper ..4....... After three months of ....5.... treatment, she regained her will to live. The AIDS time bomb .....6... on relentlessly. The World Health Organization ....7.... that 1.8 million Ugandans are HIV positive, nearly one in eight of the total population. The Ugandan AIDS Commission set up by President Museveni ..8...... the spread of the disease. However, under-porting and the lack of post-mortem and ...9..... makes it impossible to establish exact figures. No one ....10.... that it is a disaster far worse than the years of civil war.
After three months of ....5.... treatment, she regained her will to live.
Options: