1) Were they responsible for the discovery of the molecular structure of deoxyribonucleic acid? (общий) Were they responsible for the discovery of the molecular structure of deoxyribonucleic or deoxythymidylic acid? (альтернативный) Who was responsible for the discovery of the molecular structure of deoxyribonucleic acid? (к подлежащему) What were they responsible for? (специальный) They were responsible for the discovery of the molecular structure of deoxyribonucleic acid, weren't they? (разделительный)
3) Were Sir William Bragg and his son Lawrence awarded the Nobel Prize in 1915 for developing a method of determining crystal structure using X-rays? (общий) Were Sir William Bragg and his son Lawrence awarded the Nobel Prize in 1915 or in 2013 for developing a method of determining crystal structure using X-rays? (альтернативный) What were Sir William Bragg and his son Lawrence awarded the Nobel Prize in 1915 for? (специальный) Who was awarded the Nobel Prize in 1915 for developing a method of determining crystal structure using X-rays? (к подлежащему) Sir William Bragg and his son Lawrence were awarded the Nobel Prize in 1915 for developing a method of determining crystal structure using X-rays, weren't they? (разделительный)
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I think that we have many environmental problems for example air pollution, water pollution and more others. Air pollution is a very serious problem because it causes global warming and as a result climate change. The reason for global is polluting the atmosphere with green house gases. This can be a big problem for many plants, animals and people. Pollution is a very serious and we need to control and prevent it. We can reduce the amount of industrial wast and sewage. We can recycle all toxic materials. But the main thing is try to use the nature with care.
ответ:Юрий Гагарин
Объяснение: