Pollution of fresh water - getting various pollutants in the water of rivers, lakes and groundwater. Occurs by direct or indirect contact with contaminants in the water, in the absence of adequate measures for the treatment and disposal of hazardous substances.
In most cases, contamination of fresh water remains invisible because contaminants are dissolved in water. But there are exceptions: foaming cleansers are also floating on the surface of oil and raw sewage. There are several natural pollutants. Are in the land of aluminum compounds get into the fresh water system as a result of chemical reactions. The floods washed out of the soil of grassland magnesium compounds which cause great damage to fish stocks.
Dear Steve,
I was very glad to hear from you again. I haven't written for ages because of my school activities.
In your letter you ask me to tell you about my favorite kind of sports. With a pleasure.
I like sport. It plays a great role in my activities. Most of all I like to play basketball. I am a very good player and often take part in different sport competitions. Sometimes we win them but sometimes we lose. Basketball is a team game. It is played in any season because you play this game is indoors game. It is played in a gym. But sometimes you can see streetball - basketball in an open air. There are two baskets in this exciting game and only one orange ball. Players must throwthe ballto the basket andgetto it to score a goal. There are two teams with only five players.
Many people keen in sport because it makes us healthy and help us to be fit. During you play any sport game you are active and it helps you to burn many calories. Basketball is an active game. It makes people be strong, healthy and energetic. It is a game for everybody even for disabled people.
To my mind any sport is risky and dangerous. Basketball is risky too because every minute you can break your arm or leg or get another problem with your health.
I like playing basketball most of all. And I am a basketball fan too. I enjoy watching matches on TV and at the gym. I have been to the gym twice. It was great.
And what about you? Tell me about your favorite kind of sports.
That's for me today. I have to go to the shop for some food.
Best regards to your family.
Write soon.
Andrey
a) 4 july 1776 b) 3 july 1796 4) 21 mart 1530
2)Who is the first President of the USA?
a) Barak Obama b) Benjamin Franklin c) J.Washington
3)The capital of the USA ...
a) New-York b) Washington c) Florida
4)How many people are there in the USA?
a) approximatly 250 mln. b) 100 mln. c) 1 billion.
5) Where is the USA located?
a) in Asia b) in Australia c) in the North America
6))Is Wells the part of the UK and Great Britain?
a) Yes b) No
7)The capital of Wells is ...
a) Cardiff b) London c) Edinburgh
8) Who is the Head of Wells?
a) Obama b) Putin c) The Queen Elizabeth II
9)Where is Wales Located?
a) in Great Britain b) in Europe c) Africa
10)How many people are there in Wales?
a) 3 mln b) 5 mln c) 7 mln
11) The capital of Sctoland?
a) Edinburgh c) London c) Moscow
12)How many regions in Scotland?
a) 3 b) 4 c) 5