Предмет: Обществознание, автор: Ника5421

эссе "Проблемы молодежи как социальной группы современной России".

ПОЖАЛУЙСТА ПОМОГИТЕ!!

Ответы

Автор ответа: dinamakhlyshev
0
Три основных периода в жизни молодого человека. Специфические функции молодежи в обществе. Понятие и признаки физиологической и социальной зрелости.
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Предмет: Английский язык, автор: gUds
Перевести текст.

SAFETY IN THE LABORATORY
Good afternoon. My name's Mary Raffety. For the next eleven weeks, I'll be your lab instructor. The lab experiences you’ll be having are designed to complement your work in Dr. Kaplan's inorganic chemistry course. Today's experiment is purposely a short one; it'll help you become familiar with the lab setup and equipment.
As your lab instructor, it's my duty to assist you in setting up your experiments and understanding the results. I'll also grade your lab notebooks. But I have an even more basic responsibility: your physical safety. I’ll insist on proper precautions, such as wearing protective gog¬gles at all times. I also expect you to use common sense: don’t wear long scarfs that might catch fire; don't smoke; don't taste unknown substances.
Let me reinforce this point with a story. Isaac Newton, perhaps the greatest scientist of all ages, lived in a period when the toxic effects of chemicals were less understood than today. He routinely sniffed fumes, tasted chemicals, and used open containers for heating substances. In the early 1690's, he suffered through a period of insomnia, depression, and mental instability. Though his biographers linked this situation to problems in his personal life, researchers now think that it was a consequence of his lab procedures: they found abnormally high concen¬tration of lead, mercury, and other heavy metals in preserved specimens of his hair.
Consequently, we must learn from the past and put safety first.
Предмет: Математика, автор: salingersiya