Прочитайте текст и ответьте на вопрос: Why do light materials help create a lighter and brighter roo...: ответ на тест 912003 - Английский язык

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Floors belong to one of the most important functional components of a building. Floors influence the acoustics of a room: it depends on whether a hard or soft flooring is used. Floors also react in various ways with light. Some flooring materials are known to produce mirrorlike reflection. As to dark flooring materials, they, on the contrary, absorb light and this absorption makes a room darker. As to light materials, they reflect light and help create a lighter and brighter room.

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Floors belong to one of the most important functional components of a building. Floors influence the acoustics of a room: it depends on whether a hard or soft flooring is used. Floors also react in various ways with light. Some flooring materials are known to produce mirrorlike reflection. As to dark flooring materials, they, on the contrary, absorb light and this absorption makes a room darker. As to light materials, they reflect light and help create a lighter and brighter room.

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What was The Great Wall of China made of?
The Great Wall of China was built across northern China to protect the population.
Before the third century BC there were lots of smaller walls and these were joined together to make one long. The work was done by enormous gangs of forced labourers and many of them died doing the work. The wall is over 2,000 km long, 3.5m high and 4.5m wide at the top. It is made of earth covered with stone.

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What is the length of the window?
This is a room. It’s rectangular. The height of the room is 3 m. The room is about 4 m wide. It has a length of 8 m. So, the volume of the room is approximately 96 m3. The room is light. It has two wide windows. The length of the window is 2 m and the width is 1 m. Thus, the area of the window is 2 m2.

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What is the major purpose of cladding?
Cladding is a material used as the exterior wall enclosure of a building. The cladding of a building is its most visible part. Its major purpose is to separate the indoor environment of a building from the outdoors.
Cladding must prevent the entry of water, snow and ice into a building. Water on the face of a building is known to be driven by wind not only in a downward direction, but in every other direction, even upward.
Water problems, that is keeping water out, are especially great on very tall buildings. These buildings rise to height where wind velocities are extremely high.
They are much higher than a ground level. It should be taken into account that on tall buildings water tends to penetrate the smallest crack or hole and enter the building.

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It is a well-known fact that every building needs permanent stability. In order to have stability, buildings should have foundations. We know that the function of a foundation is to transfer the loads of a building into the soil. Foundations keep the walls and the floors of buildings from direct contact with the soil. They guard the walls and the floors against the action of the weather – rain, snow, and wind. Foundations keep the walls and the floors of buildings from direct contact with the soil. They also guard buildings against sinking that may cause cracks in the walls. Foundation design is very special. It may be both rather complex and very simple. It is a common practice that for very small buildings foundation design is usually much simpler than for large ones.