Appreciation of environmental protection handwritten newspaper pictures in grade one
First-class environmental protection handwritten newspaper picture 1
First-class environmental protection handwritten newspaper picture 2
First-class environmental protection handwritten newspaper picture 3
First-class environmental protection handwritten newspaper picture 4
First-class environmental protection handwritten newspaper picture 5
First-class environmental protection handwritten newspaper information: pollution in life I. Air pollution
The concentration of pollutants in the air reaches a harmful level, even destroying the ecological system and the conditions for the normal survival and development of human beings. The phenomenon that harms people and organisms is called air pollution. The causes of air pollution are natural factors, such as volcanic eruption, forest fire and rock weathering. There are also human factors, such as industrial waste gas, combustion waste gas, automobile exhaust gas and nuclear explosion. With the intensification of human economic activities and the rapid development of production, while consuming a lot of energy, a large number of waste gas and smoke substances are discharged into the atmosphere, which seriously affects the quality of the atmospheric environment.
Second, light pollution.
Excessive light radiation has a negative impact on human production and living environment, which becomes light pollution. Include visible light, infrared light and ultraviolet light pollution. Visible light pollution is normal to see glare, such as oncoming car lights at night, reflected light from glass curtain walls of high-rise buildings in cities under strong sunlight, welding arc, strong light generated by molten metal and glass, which will cause harm to human eyes.
Third, noise pollution.
Noise can cause a variety of diseases, including: heart rate changes, elevated blood pressure; Gastric ulcer and duodenal ulcer; Female sexual dysfunction, menstrual disorder and pregnant women's abortion rate increased; Excited, easy-going, absent-minded, etc.
Fourth,? White pollution? The harm of
White pollution? This is an image statement of environmental pollution caused by waste plastics. Its main hazards are: 1, destroying the city appearance and environment; 2, endangering human health; Waste plastics will become a hotbed for mosquitoes, flies and bacteria to survive and reproduce; 3. Affect crops: destroy soil furrows and prevent crops from absorbing water and growing roots.
Five, the main pollutants in domestic sewage
Domestic sewage includes sewage and dirt discharged from kitchens, toilets, toilets and other places, which can be divided into: 1, insoluble matter, accounting for 40% of the total pollutants; 2. Colloidal substances, accounting for about10% of the total pollutants; 3, dissolved substances, accounting for about 50% of the total pollutants. Most of these substances are nontoxic. In addition, it also contains various trace metals, various detergents and various microorganisms.
The content of the first-grade environmental protection manuscript: the environmental protection poem "Environmental Protection Song"
The environment is polluted,
Everything cannot be born.
Master of mankind,
How can you destroy yourself?
Ecological master balance,
Everything is competing for it.
The environment is deteriorating,
Conditions are naturally inclined.
Adaptive environment theory,
Humans decide first.
Darwin said,
People have the same things for a reason.
Maintain life sciences,
Everyone is aggressive.
Global colleagues,
Defend the extended family.
Advocating science,
Don't believe in superstition.
A thousand words, handed down from generation to generation,
Happiness is for children.
Recommend handwritten newspaper materials and pictures on other topics as reference:
1. Contents and pictures of the first-grade environmental handwritten newspaper for primary school students.
2. First-class environmental protection handwritten newspaper pictures
3. First grade environmental protection blackboard painting
4. First-class environmental protection handwritten newspaper text pictures
5. First-class environmental protection handwritten newspaper materials