First read a passage and then answer the questions following that passage.
How can you improve your reading speed ? By taking off the brakes. You wouldn't think of driving a car with the brake on. Yet as a reader you probably have several brakes slowing you down. One very common brake is regressing-looking back every now and then at something already read. It is like stepping backwards every few metres as you walk-hardly the way to move ahead quickly. Regression may arise from a lack of confidence, vocabulary deficiency, or actually missing a word or phrase. It makes a long sentence seem even more complex as the eyes frequently regress. Eye movement photographs of 12,000 readers in America showed that university students regress an average of 15 times in reading only 100 words. The average student of class four was found to look back 20 times. In short, regression consumes one-sixth of your precious reading time. Release this brake and enjoy a spurt in reading speed.
In order to be a good reader you should

Explanation

(i) Most of the hair dyes are derivatives of aromatic amines. P-Phenylenediamine itself produces a black colour while the p-aminodiphynylaminesulphonic acid is used in blonde formulation. Intermediate colours can be produced by using other derivatives.

The colour of these dyes is due to their aerial oxidation to quinones and nitro compounds.

(ii) riti has displayed concern about the health of artificial hair dye users since these are suspected to be carcinogens. therefore, she suggested that natural dye Henna should be used. However, the active constitutent of Henna is not an aromatic amine but is a quinone actually 2-hydroxy-1,4-naphthoquione.
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