write any one merits and 2 demerits of dry cell.
Answers
Answer:
One merit of dry cell is that they are easy and safe for transportation.
Two demerits of dry cells are as follows :
• Environmental risks
• Chemical dangers
Explanation:
• Environmental risks :
While it's true that dry cell batteries can be recycled, there are many people who simply throw them away to be put in a landfill somewhere. The dry cell batteries that aren't recycled can have several negative effects on the environment. These dry cell batteries are often mistaken for food by animals, and eating them can have disastrous effects on the creatures' health. Dry cell batteries will usually crack open and leak if left exposed to the elements. Their chemicals poison the ground, and they can get into the water table, thereby making it unsafe to drink water in the area.
• Chemical dangers :
Dry cell batteries carry an inherent risk due to the chemicals inside of them. If they are exposed to too much heat (such as being placed too close to or actually in a fire) dry cell batteries can rupture and explode. The contents of the battery are dangerous to people, and the chemicals are highly acidic to the skin. However, if the battery doesn't explode but rather its case is punctured it can leak. This can cause damage inside of electronics, but if the leak comes into contact with skin it can also cause chemical burns.