Answer:
There are three modes of heat transfer.
1. Conduction
2. Convection
3. Radiation
1. Conduction: Heat transfer through the process of conduction occurs in substances which are in direct contact with each other. It generally takes place in solids.
For example: When frying vegetables in a pan. Heat transfer takes place from flame to the pan and then to the vegetables.
2. Convection: In this process, heat is transferred in the liquid and gases from a region of higher temperature to a region of lower temperature. Convection heat transfer occurs partly due to the actual movement of molecules or due to the mass transfer.
For example: Heating of milk in a pan.
3. Radiation : It is the process in which heat is transferred from one body to another body without involving the molecules of the medium. Radiation heat transfer does not depend on the medium.
For example: In a microwave, the substances are heated directly without any heating medium.
Dacryoadenitis is an inflammation of the lacrimal gland that can be a bacterial, viral, or fungal infection.
Lacrimal gland is the gland responsible for lubricating eye to moisten and lubricate it. This gland is present between eyes and eye brows. The secretion of lacrimal gland is commonly known as tears.
The inflammation in lacrimal gland can be acute or chronic. The infection by bacteria or virus is the cause of acute inflammation. Chronic inflammation results for disorders like thyroid or pseudotumour. Common example of virus infecting lacrimal gland is Epstein-Barr virus and bacteria is <em>Staphylococcus</em>.
The symptoms of dacryoadenitis include redness in eyes, pain in movements, double vision, droopy upper eyelid etc. Treatment includes intake of antibiotics and abscess drainage.
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Thoracic Diaphragm...........
Answer:
Photosynthesis is a process whereby plants uses sunlight to prepare their own food using sunlight and without energy such as heat cannot perform its functions.
Answer:
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