Ocean under Threat民谣歌手排行
people u oceans for trade, travel, tourism, and recreation. we also take food and resources from oceans. All the activities can have harmful effects on the oceans and the creatures that live in them. Overfishing and pollution are the most common problems. Oceans link countries all over the world; awater circulates around the globe, so what we do in one part of the ocean can affect another.
Overfishing
In parts of the world, fishing boats with huge nets sometimes take too many of the same species of fish from a small area, causing some ocean waters to be overfished. As a result, there are not enough fish left t breed in the areas. This affects other fish in the food chain, and it affects people becau there eventually may not be enough fish left to eat. In some parts of the world, limits have been t for the number of fish to be caught at one time.老马伏骥
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Threats to Marines Life
Some species of marine creatures are now rare becau too many have been killed for food or sport. Tropical islands and coasts with coral reefs also attract large numbers of tourists every year. Indeed, this helps people develop an understanding of marine life. However, coral and shellfish can be destroyed by heavy boats. Divers, who stay under water just for fun or to hunt for souvenirs, are disturbing the natural cycles of marine life.
Pollution
One of the biggest threats to oceans is pollution from industry. Most pollution happens in coastal areas. In fact, many coastal cities and ports are reported to have long been polluted by chemicals and other harmful things from heavy industries. The industries dump the materials into the nearby rivers, which then wash them into the a. Once they ttle on a continental shelf, pollutants pile up. We do not know a great deal about the long-term effects of pollution. However, we do know that the North and Black as in Europe have been polluted so much that the marine life is poisoned and may never recover.
Possible Solutions
All countries of the world need to work together to share ocean resources fairly. Laws are to be made and regulations are to be enforced to prevent overfishing and pollution. It is often difficult to agree on the best way of doing this. It is also hard to make people obey laws when our oceans are so vast and difficult to patrol. However, we should all learn to understand how important it is to manage the world’s oceans now and in the future.
Dear friends
Trees are our friends. They work hard for us. They clean the air and cool our cities. They remove dust and produce the oxygen we breathe. Trees reduce sound pollution for large urban areas and add beauty to cities. They can help increa the value of property. Homes with many trees have higher values. Without trees, soil would be washed away and there would be no food for us to eat. Without trees shade, the Earth would get too hot to live on. Trees provide shelter, food and things for both humans and animals. They also supply material for hous, furniture, paper products, etc. Some trees even provide important ingredients for medicines that cure illness. Without trees, we would die.
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In the last 200 years, more than half of all the trees on the Earth have been destroyed. We need more trees! For every tree being planted today, 30 trees are being cut down. 转弯的英文
Trees for Life is making a difference. We plant trees and take care of them to help protect our environment. We give help to all the people who would like to join us in this project. We want to plant 100 million trees in the next 10 years. If you want to find out more about us, plea nd us an e-mail at.第一手资料
We hope you will have lots of fun with us.
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TREES FOR LIFE
