Welcome to the presentation. Content! 1.Types of environmental pollution 2.causes and effects 3.solutions 4.lesson review
Types of environmental pollution
Starting activity
SAVE THE EARTH
Noise pollution Water pollution Air pollution Soil pollution Fossil fuels Acid rain Greenhouse effect Global warming Polar ice melting Sea level rise Inorganic waste Chemical fertilizers Contaminated vegetation Decrease of soil fertility Detergents Pesticides Oil spill Chemical waste Rubbish blockages Loud sounds Jet engines Hearing damage Increased heart rate Psychological stress
There are four types of pollution Noise Pollution Air Pollution Water pollution Soil pollution
Study the causes and effects of environmental pollution.
Nature Causes Forest fires Volcanoes blowing up floods Huge strorms
People causes Air pollution Soil pollution Water pollution Noise pollution
Affects
What should we do?
Some basic measures Raise awarenesss
Limit the use of natural resources to prevent resource depletion . Save energy
Plant more trees Planting trees helps to provide a clean atmosphere and avoid environmental pollution
Raise awareness of environmental protec tion The community needs o create a living environment where everyone has a sense of environmental protection
Use electric car and bicycles instead of cars and motorbikes Use environmentally friendly means of transport
Other measures to reduce environmental pollution. Measure: Use alternative energy sources Solar energy Water energy Wind energy
Solar energy Solar energy can be changed into electricity . Solar energy is not only plentiful and infinite but also clean and safe
Water energy This energy is used to create electricity Water power gives energy without pollution However, people have to build dams to use this energy. And as dams cost a lot of money, water energy is expensive.
Wind energy Wind energy is a clean source of energy, and there is lots of it Unfortunately, if the wind does not blow, there is no wind energy .
Although there are some disadvantages, the potential of alternative sources of energy is great. However, how to make full use of these sources of energy is a question for researchers all over the world. Potential of alternative energy sources
1.Air pollution is mainly caused by the ______ of fossil fuels from factories and vehicles . A. conservation B . burning C. reduction D. recycling
2.We should be aware ___ the harmful effects of environmental pollution. A. of B. about C. with D. in
3.Factories should be responsible ___ reducing their waste emissions. A. on B. in C. for D . with
4.Many people have started ___ renewable energy sources to reduce pollution. A. use B. using C. used D. to using
5.The government should take action to ______ environmental pollution. A. suffer B. reduce C. increase D. cause
6.The water in this river is heavily contaminated with chemicals from factories . A. Clean B. Polluted C. Fresh D. Pure