Вопрос № 912155 - Английский язык

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The two most common types of engines for cars are the petrol engine and diesel engine.
Petrol engines are usually lighter and smaller than diesel engines. This makes them cheaper, and this is why most cars use petrol engines. Petrol engines are also led noisy than diesel engines. They usually go faster. On the other hand, diesel engines use less fuel than petrol engines, and this is why trucks use them. They are also safer than petrol engines, because there is less danger of fire.
There are two main types of petrol engine – 4-stroke and 2-stroke. All cars use 4-stroke engines. But most motorbikes use 2-stroke engines. They are lighter and smaller than 4-stroke engines, and are therefore cheaper.
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All cars use …

The two most common types of engines for cars are the petrol engine and diesel engine.
Petrol engines are usually lighter and smaller than diesel engines. This makes them cheaper, and this is why most cars use petrol engines. Petrol engines are also led noisy than diesel engines. They usually go faster. On the other hand, diesel engines use less fuel than petrol engines, and this is why trucks use them. They are also safer than petrol engines, because there is less danger of fire.
There are two main types of petrol engine – 4-stroke and 2-stroke. All cars use 4-stroke engines. But most motorbikes use 2-stroke engines. They are lighter and smaller than 4-stroke engines, and are therefore cheaper.
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All cars use …

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There are different 1_______ in the picture. Instrument A is known as a 2_______. It’s used for measuring pressure. It has a scale and a pointer. Instrument B is defined as scales. They have two pans. They are used for measuring 3_______. There are different types of scales. Instrument C is known as a ruler. It is used for drawing straight lines and different shapes. It has marks and 4_______ on it.

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How many types of atom does carbon dioxide have?
Aluminium (Al), water (H2O), oxygen (O2) and carbon dioxide (CO2) are substances. Some substances are elements and some substances are compounds. Elements have only one type of atom whereas compounds have more than one type.
Aluminium is an element: it has only one type of atom (i.e. it has only aluminium atoms). Oxygen has only one type of atom, so it is also an element.
Carbon dioxide has two types of atom (carbon and oxygen), so it is a compound. Sulphuric acid (H2SO4) is also a compound: it has three types of atom (hydrogen, sulphur and oxygen). Water is also a compound.

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How many times did Gagarin orbit the Earth?
A Russian cosmonaut (astronaut) named Yuri Gagarin, who graduated from the Air Force school at Orenburg in 1957, made the first manned spaceflight. He was launched into space aboard the spacecraft Vostok 1 on April 12, 1961. He orbited the Earth once in one hour and 29 minutes reaching a maximum altitude of 187 miles (301 kilometres). The ship landed the same day at 10:55 a.m. It was Gagarin’s only space flight.

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Squares and rectangles are shapes. Squares have four sides. Rectangles also have four sides. Triangles do not; they have three sides. Circles are also shapes but they do not have sides.