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A single button battery can pollute 600,000 litres of water, which is equivalent to the amount of water used in a person's lifetime. A No. 1 battery rots in the ground, which can make one square meter of land lose its use value.
Waste battery hazards.
1. Types of batteries: batteries mainly include primary batteries, secondary batteries and automotive batteries. Disposable batteries include button cells, ordinary zinc-manganese dry batteries and alkaline batteries, and primary batteries mostly contain mercury.
Secondary batteries mainly refer to rechargeable batteries, which contain the heavy metal cadmium. Waste automotive batteries contain acid and the heavy metal lead.
2. The harm of waste batteries: The mercury in the waste batteries in nature will slowly overflow from the batteries, enter the soil or water source, and then enter the human body through crops, damaging the kidneys. Under the action of microorganisms, inorganic mercury can be converted into methylmercury, which gathers in the body of fish, and after people eat this fish, methylmercury will enter human brain cells, causing serious damage to the human nervous system, and the serious ones will go crazy and die.
The famous Japanese Minamata disease is caused by methylmercury. Cadmium exudates and pollutes land and water, and eventually enters the human body to damage the liver and kidneys, and can also cause bone weakness, and in severe cases, bone deformation. The leakage of acid and heavy metal lead contained in automobile waste batteries into nature can cause soil and water pollution, and ultimately cause harm to people.
3. Waste batteries: The popularity and variety of household appliances have increased the use of batteries. Waste batteries are mixed in garbage, which not only pollutes the environment, but is also a waste.
The annual consumption of batteries in the country is 3 billion, and 740 tons of copper, 10,000 tons of zinc and 10,000 tons of manganese powder are lost due to the lack of **. We should separate the used batteries from other garbage and send them to **. Many countries attach great importance to the use of used batteries.
Many stores in Germany require customers to return the used batteries to the store when they buy them; Japan's proprietary sorting bins collect different waste batteries.
4. Knowledge card: Do you know "painful disease"? "Painful disease" and "Minamata disease" are both industrial diseases that occur in Japan.
This is due to industrial wastewater containing cadmium or mercury contaminating soil and water sources and entering the human food chain. "Minamata disease" is mercury poisoning, in which patients suffer from damage to the central nervous system and peripheral nerves due to the accumulation of methylmercury in the body, ranging from paralysis of the hands and feet to death. "Painful disease" is cadmium poisoning, in which the hands and feet are painful and fractures are susceptible to fractures throughout the body.
People with this disease keep shouting, "It hurts! It hurts! Until he died, so he was called "painful disease".
Because ordinary dry batteries contain these two toxic elements, there is always hidden pollution from production to disposal. The battery is imperative!
Please do not litter used batteries!!
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Send it over, see if it's enough, and if there's anything else I need to help you with.
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The dynamic score is the average score of the past six months, which can also be converted to 180 days, as time goes by, the score of the long time will be eliminated, and the latest score is added, for example, your expired score is 5 points, and the score of the new rating is also 5 points, then there will be no change, if the expired score is 4 points, and the new rating is 5 points, then the score will rise...
The dynamic score also has a lot to do with the average value of the industry...
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It's not going to change, unless someone gives you a 4, and it becomes.
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The dynamic score, as the name suggests, is not fixed and is the average of the scores from the last 6 months.
After the buyer scores, it will generally be reflected around 9 a.m. the next day.
However, if the number of previous scorers is large, the scoring effect of the next one or two people is limited, and the score will not be greatly increased.
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OK. If he doesn't copy because he's busy with work, then putting off sending you back a message can only mean that he doesn't value you enough. If he doesn't value you before marriage, then it will definitely not be good after marriage.
He needs to take this seriously, you have reason to be angry, and you should let him know what he thinks. Except for work matters, or sleeping without seeing, otherwise you should not be ignored.
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Fall asleep, this little thing should not be guessed, love is based on mutual trust.
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It's not good, he may be busy if he doesn't reply to your messages, and two people should understand and trust each other together.
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I didn't discuss it, the second day it went up, and on the third day you couldn't get out, and his funds ran out, and you became a pick-up
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