Question

Holiday Homework
General Science
Class VIII
(2021-2022)

 


1.Make a brochure on any ONE topic
POLLUTION OF AIR
 POLLUTION OF WATER
under the following heading

 

a. Causes
b.  Harmful effects
c.  Measures to prevent  the pollution
d. Your suggestions to overcome the problem  .

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Answer 1

Answer:

Air pollution is known to cause irritation in the eyes, lungs, nose, and throat. It creates respiratory problems and exacerbates existing conditions such as asthma and emphysema. When continually exposed to air pollution, humans become at higher risk for cardiovascular disease.There are many causes of air pollution. For sanity’s sake, we’ve done our best to categorize them at a more general level.

Before we get into the different causes, let’s take a quick step back and look at the different variations of air pollution.

First, there’s invisible and visible air pollution. The smog you see lingering over a city is a good example of visible pollution.Each pollutant has its own health risk profile, which makes summarizing all relevant information into a short chapter difficult. Nevertheless, public health practitioners and decision makers in developing countries need to be aware of the potential health risks caused by air and water pollution and to know where to find the more detailed information required to handle a specific situation. This chapter will not repeat the discussion about indoor air pollution caused by biomass burning (chapter 42) and water pollution caused by poor sanitation at the household level (chapter 41), but it will focus on the problems caused by air and water pollution at the community, country, and global levels.