2) Make a project about Air, which shows composition of the Air, different layers of Atmosphere, Air pollution, causes of Air pollution and solution of Air pollution.
Answers
Explanation:
gifts of nature include air which is very important for the survival of life in earth. Atmosphere(Greek meaning vapour sphere) is the blanket of air which surrounds the Earth.
composition of air are nitrogen (78percent), oxygen (21percent). the remaining 1% consists of gases likr argon, hydrogen, helium, Ozone and carbon dioxide. the density and temperature of the atmosphere is not the same everywhere. the atmosphere can be divided into five distinct layer : Troposphere(the lowest and the denset layer of atmosphere), Stratosphere( it is a dry zone and extends up to a height of 50 km), Mesosphere( this layer lies above the stratosphere and extends from 50 km to 80 km), Thermosphere(it lies above the mesosphere and extend from 80 km to 400 km) and Exosphere( it is the uppermost layer of the atmosphere. the extent of this layer is 1600 km).
Air Pollution - The contamination of air by the addition of harmful substances to it is called air pollution. an air pollutant is any substance present in the air that may affect the humans, vegetation ,animals,etc. substances like Sulphur dioxide, excess carbon dioxide, carbon monoxide, nitrogen dioxide and smoke are common air pollutants. air pollution causes health problems to humans and a great damage to the environment.
causes of air pollution - smoke from forest fires, dust from dust storm, smoke , ash and poisonous fumes from volcanic eruptions, burning of fuels like coal, wood and dung cakes for household purposes, industrial emission of smoke and gases, emission of co2 and CO, fly ash and smoke from power plants, vehicular emission produced by burning of petrol and diesel in vehicles.
solution of air pollution - use only unleaded petrol this causes less air pollution and does not release toxic lead on burning. CNG (compressed natural gas) is a cleaner fuel in Delhi the use of CNG has been encouraged this has helped in reducing the air pollution level in Delhi. instead of going to the nearby market by a car or a scooter encourage your family members to walk down to the market or make use of a bicycle this will reduce the vehicular mission. use of public transport should be encouraged forming a carpool is a good way to commute to the workplace and back. burning of dry leaves should be discouraged in seed making compost from leaves is a good idea. pollution under control certificate is mandatory in major cities make sure that pollution check of your car or scooter is done at regular intervals. form and environment club in your school with the help of your teachers plan out activities like growing trees and looking after then create awareness among others by various ways like organising debate, quiz, street play, poster making competition, etc.