Question

Write short note 1) Heart diseases
2) Lead acid cell​

Answer 1

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Coronary artery disease, also known as coronary heart disease, is the most common type of heart disease. It develops when the arteries that supply blood to the heart become clogged with plaque. This causes them to harden and narrow. Plaque contains cholesterol and other substances.

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The lead–acid battery was invented in 1859 by French physicist Gaston Planté and is the earliest type of rechargeable battery. Despite having a very low energy-to-weight ratio and a low energy-to-volume ratio, its ability to supply high surge currents means that the cells have a relatively large power-to-weight ratio.

Answer 2

Explanation:

Types of heart disease include:

1. Arrhythmia. An arrhythmia is a heart rhythm abnormality.
2. Atherosclerosis. Atherosclerosis is a hardening of the arteries.
3. Cardiomyopathy. This condition causes the heart's muscles to harden or grow weak.
4. Congenital heart defects. ...
5. Coronary artery disease (CAD). ...
6. Heart infections.

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