Thursday, March 29, 2012

(UFS 211)TASK 5 : WATER POLLUTION (TOPIC/SUPPORTING & CONCLUDING SENTENCE )


Water pollution has become an issue of great concern in our society. The first causes of water pollution include sewage and nutrients from fertilizers being dumped into water. This causes a problem for all the organisms because the nutrients cause the algae and water plants to grow to abnormally large sizes and can eventually block waterways. As these nutrients decompose in the water, they use up oxygen which can harm all the organisms living in the environment. Besides, water pollution is also caused by foreign bacteria, viruses, and parasites. These harmful organisms get into the water from sewage that is not filtered correctly, storm drains, septic tanks and boats that dump sewage into the water. Consequently, it can cause sickness to humans, animals, and plants. The most common of these effects would be those to humans such as bacteria in drinking water. In addition, radioactive substances such as oil and heat also introduce the cause of water pollution. Basically, water pollution from oil is caused by such things as oil spills and drilling near a water ecosystem. This is a problem because obviously oil and radio active materials are harmful to the aquatic organisms. Heat is a pollution problem because a drastic change in temperature can be very harmful for water organisms. In a nut shell, sewage and nutrients from fertilizers ; foreign bacteria, viruses, and parasites; and also radioactive substances causes water pollution. Without a doubt, it is a huge problem in today’s society and we must try to help stop this enormous problem before it is too late.

TOPIC SENTENCE :

- Water pollution has become an issue of great concern in our society.

SUPPORTING SENTENCE :

I) The first causes of water pollution include sewage and nutrients from fertilizers being dumped into water.

II) Besides, water pollution is also caused by foreign bacteria, viruses, and parasites.

III) In addition, radioactive substances such as oil and heat also introduce the cause of water pollution.

CONCLUDING SENTENCE :

- In a nut shell, sewage and nutrients from fertilizers ; foreign bacteria, viruses, and parasites; and also radioactive substances causes water pollution. Without a doubt, it is a huge problem in today’s society and we must try to help stop this enormous problem before it is too late.

LINKER USED :

- Besides
- Consequently
- In addition
- Basically
- In a nut shell

1 comment:

  1. Awesome Girl.... By the way.. nice Site...
    and song2..
    if i ma not wrong it's Avril's Song..? :)

    ReplyDelete