1)каковы основные причины выезда людей из стран? 2)какие страны выбирают люди для нового места жительства? почему? 3)какие проблемы вызывает в этих странах приток мигрантов?

BaO=Ba(OH)2

 Ba(NO3)2=BaSO4

1.Rewrite the sentences. Use possessive pronoins.

1)This is my jumper.

This jumper is mine.

2)This is your skateboard.

Thise skateboard is yours.

3)These are his shoes.

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4)These aren't your tickets, they're her tickets.

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5)This is their book, it isn't her book

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6)These are my shoes, they aren't his shoes.

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2.Circle the correct words.

1)It that MY/MINE wallet?

2)Where is THEIR/THEIRS football?

3)That football isn't YOUR/YOURS!

 It's MY/MINE!

4)He hasn't got OUR/OURS tickets.

5)Have you got YOUR/YOURS books? We've got OUR/OURS.

6)Where's YOUR/YOURS skateboard? 

число m увеличиили на 25%, а затем получившееся число уменьшили на 30%. Сравните последнее получившееся число с числом m.