Предмет: Английский язык, автор: пнгп

помогите написать сочмнение на тему 1 явление природы

Ответы

Автор ответа: Твиттер
1

Мне хочется рассказать о муравейнике него удивительных маленьких обитателях - муравьях. Муравейник - это целое государство с гнездами-домиками, складами, улицами и, наверное, дворцовой площадью. А муравьи - сословий организованное сообщество, в котором есть королева, есть крылатые молодые самки и самцы, есть бескрылые рабочие муравьи. Они все время в движении: куда-то бегут, что-то тащат - работают, делают запасы на зиму и для будущего потомства. Но, оказывается, работают только рабочие муравьи или даже муравьи-рабы. А "рабами" они стали потому, что крупные и сильные муравьи разорили гнезда более мелких собратьев, выгнали хозяев, а их яйца и личинки перетащили в свой муравейник, вырастили из них зрелых муравьев и заставили служить себе. В мире существуют тысячи различных видов муравьев. И у каждого вида свои обычаи, своя организация муравьиного сообщества.

Автор ответа: barabolka
1
The greenhouse effect is a process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases, and is re-radiated in all directions. Since part of this re-radiation is back towards the surface and the lower atmosphere, it results in an elevation of the average surface temperature above what it would be in the absence of the gases.
Solar radiation at the frequencies of visible light largely passes through the atmosphere to warm the planetary surface, which then emits this energy at the lower frequencies of infrared thermal radiation. Infrared radiation is absorbed by greenhouse gases, which in turn re-radiate much of the energy to the surface and lower atmosphere. The mechanism is named after the effect of solar radiation passing through glass and warming a greenhouse, but the way it retains heat is fundamentally different as a greenhouse works by reducing airflow, isolating the warm air inside the structure so that heat is not lost by convection.
If an ideal thermally conductive blackbody was the same distance from the Sun as the Earth is, it would have a temperature of about 5.3 °C. However, since the Earth reflects about 30% of the incoming sunlight, this idealized planet's effective temperature (the temperature of a blackbody that would emit the same amount of radiation) would be about −18 °C.The surface temperature of this hypothetical planet is 33 °C below Earth's actual surface temperature of approximately 14 °C. The mechanism that produces this difference between the actual surface temperature and the effective temperature is due to the atmosphere and is known as the greenhouse effect.
Earth’s natural greenhouse effect makes life as we know it possible. However, human activities, primarily the burning of fossil fuels and clearing of forests, have intensified the natural greenhouse effect, causing global warming.
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Предмет: Английский язык, автор: juldizsag
I am a student of the biological faculty. Our faculty is one of the largest faculties of the University. We study different subjects: Botany, Anatomy, Microbiology and many others. Besides these subjects we study Political Economy, Philosophy and English. We study English to be able to read scientific books on biology.
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Students are acquainted with all branches of biology. They are lectured in various subjects of natural science, namely botany, zoology, anatomy, microbiology, biophysics, biochemistry, soil science, bionics, genetics.
During the first two years they attend lectures on mathematics, physics, chemistry, political subjects and foreign languages. In the third year more narrow specialization begins. They have several specialized courses and additional practical and research work in the subject they have chosen as their future speciality. Besides attending lectures they may join some scientific circle and choose a problem to work on according to their bents. All of them know that biology is the science of glorious past and great future. They do their best to acquire as much knowledge as possible.
Graduates of the biological faculty are assigned to work at laboratories, schools, research institutes. Those who have a bent for research work may apply for a postgraduate course of study.