关键词不能为空

当前您在: 主页 > 英语 >

How to protect the endangered animals

作者:高考题库网
来源:https://www.bjmy2z.cn/gaokao
2021-03-01 04:42
tags:

-

2021年3月1日发(作者:empty是什么意思)


How to Save Endangered Species


Causes of Endangerment



Top Five Reasons


A. Loss of habitat


One


of


the


greatest


causes of


animal


endangerment


is the


loss


of


habitat.


There


just


isn’t


any


place for them to live where they are safe, can find food or can raise their young. Some of the


causes of loss habitat are human activities that destroy the natural landscape.


Activities


like


logging


destroys


habitat


by


removing


trees


that


are


food


and


shelter


for


many


species. Mining is another cause of habitat destruction as some mountains and valleys are totally


de- vegetated.


Agriculture is another major cause of lost habitat. Not only is more land being used to grow crops


all the time, but the pesticides uses to grow these crops run off the land polluting streams and


lakes.


B. Over-hunting


Over-hunting or over-harvesting, as it is also called, is having a devastating impact on animals and


fish all over the planet. As the human population grows, so does the demand for more food.


Hunting some species in certain areas can be beneficial because when the ratio of predator and


prey animals is out of balance; if there are many prey animals they can starve. But many animal


species are hunted or harvested in such large numbers that their species will not survive.


C. Pollution


Pollution


if


found


in


many


forms:


air


pollution,


water


pollution


and


waste


pollution


which


is


mostly


plastic.


Air


pollution


is


caused


by


city


traffic,


coal


burning


power


plants


and


various


chemical


industries.


Particles


are


lifted


into


the


air


causing


health


problems


to


animals


and


humans.


Another very serious affect of air-born pollution is when the particles attach to rain droplets or


snow and fall back to earth. This is called acid rain, and the impacts have been experienced all


over the world.


Acid rain changes the pH balance of the water and soil making it difficult for plants and animals


to


survive.


Fish


have


experienced


total


die-offs


over


industrial


regions


where


acid


rain


is


the


worst.


Water pollution is also responsible for killing plants, animals and fish all over the world. There are


many


causes


of


water


pollution


including


runoff


from


farms


that


contain


fertilizers,


herbicides


and large amounts of animal feces.


Industries


all


over


the


world


contaminate


the


water


with


chemicals


and


petroleum


products.


Municipal water drained from cities also has many compounds and pollutants in it even though it


is filtered through large water treatment plants.


There are many substances that cannot be


filtered out of the water such as certain chemicals,


prescription medicines and caffeine that human consume and then pass through their systems


into the water. All of these things cause problems for fish and wildlife o the planet.


Garbage is another major problem for animals, birds and fish. Among all the trash humans throw


away


very


day,


plastic


is


the


worst.


It


can


take


hundreds


of


years


for


some


types


of


plastic


to


finally break down completely.


Plastic is mistaken for food by animals, birds and fish. They eat the plastic not realizing what it is


and it fills their stomachs. These creatures die from the chemicals in the plastic or they die of


starvation when their stomachs are so full of plastic they cannot longer digest any food.

-


-


-


-


-


-


-


-



本文更新与2021-03-01 04:42,由作者提供,不代表本网站立场,转载请注明出处:https://www.bjmy2z.cn/gaokao/686008.html

How to protect the endangered animals的相关文章