Вопрос № 1072269 - Английский язык

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Vitamins are special substances that the body needs, along with proteins, fats, carbohydrates and minerals. Vitamin A is needed for healthy eyes and is found in fish-liver 1_______, egg yolk, butter, green vegetables and fruit.
Vitamin D is needed for healthy bones and for protection against rickets. It is found in very small 2________ in egg, butter and fish. We get most of our vitamin D from the sun.
Vitamin C 3_______ against scurvy and is found in oranges, lemons, tomatoes and green vegetables.
Vitamin B is present in milk, eggs, liver. It is needed to strengthen our 4_______ system.

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What are Vitamin B1, Vitamin B2, Vitamin B6, Vitamin B12, Vitamin С and other stated to belong to?
Vitamin B1, Vitamin B2, Vitamin B6, Vitamin B12, Vitamin С and other are stated to belong to the water-soluble vitamin class. Vitamin B2 (riboflavine) is built up from a ribose and isoalloxazine residue, the name riboflavine being derived from the sugar component and the intense yellow fluorescence of it’s agucous solution.

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There are no records of when or where bread originated. It is certain, however, that the known history of bread is longer than the history of any other food. 1_______. Although the history of bread is nearly as old as the history of mankind, the basic formulation has changed little. 2_______. In very early times grain was pounded and consumed as a watery paste. During the Stone Age grain was crushed between stones and gave a crude flour. 3_______. The result – a rather hard bread – was very different from the loaf we know today. 4_______.

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The basic ingredients used in breadmaking are flour, water or milk, salt, yeast and sugar. 1_______. Flour is the principal constituent. 2_______. Strong flour yields a dough containing sufficient gluten to permit the good expansion of the dough caused by the formation of carbon dioxide. 3_______. Yeast is a monocellular organism which grows by the process of budding. The amount of yeast used varies greatly depending upon the time allowed for fermentation. A larger proportion of yeast shortens the fermentation period. The liquid may be milk or water. 4_______.

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Tractors occupy an important place on the farm as a source of power. On many farms they, together with trucks or trailers, have entirely displaced horses for farm work. An advantage of tractors power over the horse is that tractor can be used continuously for heavy work. In addition to pulling implements like ploughs and cultivators, a tractor may be used with implements for bush-cleaning, ditch-filling and land-leveling. Small tractors from 1 to 10 horse-power, fitted with single-or twin cylinder petrol engines, may be used for garden and orchard work.
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On many farms tractors have entirely displaced …

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Many different groups of organisms attack plants parasitically. Nematode worms of microscopic size often invade plants, and living parasitically therein, cause serious disease in roots, tubers, bulbs, stems, and leaves. Highly infectious diseases of the virus type are now recognized to be among the most serious that affect plants; they are often transmitted by insects. The fungi include an immense number of forms parasitic on plants which are often extremely injurious. The diseases most to be feared are those which are epidemic in character, i.e. those which develop almost simultaneously and universally throughout a crop.
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Highly infectious diseases of the virus type are often transmitted …