What is light pollution?It is an umbrella term for representing all forms of misused artificial light.In the broad sense,light pollution is defined as the unwanted change of natural light levels in the environment due to effects of manmade light sources.Human activities are directly or indirectly responsible for this form of pollution.
The obvious cause of light pollution is to use external lighting products inappropriately.It can be apartment light,office lighting,car headlights,station lights,streetlights and many more.With reference to these many contributing sources,it won’t be wrong to say that is an outcome of industrial civilization.
Light pollution is harmful to both plants and animals.Upon studies,it is found that obvious effects are observed in the behavior of nocturnal animals.Needless to mention,bright light at night makes it difficult for these animals to hunt,wander and perform their regular activities.
Light pollution is directly or indirectly responsible for causing several diseases.Its effects are related to disturbance in the physical rhythm.It contributes to risks of developing cancerous cells.Light pollution is nothing less than a threat to human health.
You have already seen the negative effects of light pollution on plants,animals and human health.Apart from this,the actual cost of misused light is estimated to be millions of dollars every year.After all,fossil fuels are used for producing maximum electricity.
【2016届高三英语一轮复习讲义:Book 5 Unit 14】相关文章:
★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (26)
★ 【北师大版】2014届高考英语一轮复习指导课时作业:Unit 5 A卷 Word版含解析
★ 2014年牛津译林版高中英语总复习(第1轮)同步练习 M7《Unit 3 The world online》
★ 【人教版】2014届高考英语一轮复习指导考点针对练:必修4 unit4《Body language》
★ (全国通用)2014届高考英语一轮单元复习 限时强化训练十二
★ 湖南省岳阳市2014高考英语一轮单项选择训练题(14)及答案
★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (9)
最新
2017-04-24
2017-04-24
2017-04-24
2017-04-24
2017-04-21
2017-04-21