Part 2. read definition of the word from the text. write it in the given place. 5. a 2-wheeled vehicle that a person rides by pushing on foot pedals [1] 6. the large round object that circles the earth and that shines at night by reflecting light from the sun [1] total [6]

1. велосипед - bike, bicycle

2. луна -  the moon

The State Hermitage Museum in Saint Petersburg is the largest museum and picture gallery in Russia. It is also one of the most influential institutions in art sphere in the world. The museum is situated at the Harbor of Neva River in Winter Palace, which used to be the official residence of Russian monarchs.At the moment people can see there various masterpieces of such world-known artists as Matisse, Picasso, Van Gogh, Rembrandt, Van Dyck, Leonardo da Vinci and many others.

Государственный Эрмитаж в Санкт-Петербурге является крупнейшим музеем и картинной галереей в России. Он также является одним из самых влиятельных учреждений в сфере искусства в мире. Музей расположен на гавани реки Невы в Зимнем дворце, который раньше был официальной резиденцией русских монархов. В настоящий момент люди могут видеть там различные шедевры таких всемирно известных художников, как Матисс, Пикассо, Ван Гог, Рембрандт, Ван Дейк, Леонардо да Винчи и многих других

Surprisingly, Hermitage is not only a picture gallery. There are also lots of sculptures, ancient arts and crafts items and else. Almost all works of art are of European origin. Удивительно, что Эрмитаж не только картинная галерея. Там есть также множество скульптур, предметов древнего прикладного искусства и т.д. Почти все произведения искусства европейского происхождения.

All the energy we receive , ultimately comes either from the sun or from the ground.
The sun heats our planet , and supplies required for plant growth light . And in the distant past the sun in the same way our planet has implemented energy. His energy is transformed into plants , animal life supported . Due to this we get today coal, oil and natural gas - the so-called fossil fuel resources on which our civilization depends significantly .
The only alternative energy source that is in the earth - the atoms of certain elements that formed long before the advent of the solar system. They are now in the crust * .
* Uranium contained in the earth's crust , formed about 6.5 billion years ago, and its concentration is on average 0.14 %. Heat from the radioactive decay of uranium today manages the processes of convection in the Earth's crust.
The amount of energy per unit mass of an atom depends upon the size of atom minimum amount of energy per unit mass of the atoms contained in the medium size ( such as carbon and oxygen) , while increasing the amount of the atoms contained in the small ( such as hydrogen ) or large ( such as uranium) . Energy can therefore be obtained either by joining smaller atoms atoms in average sizes (synthesis ) or by dividing the larger atom to medium size ( splitting). Development of fusion energy and humanity splitting energy is one of the most important achievements in the history .