a) what is cell ?
b)what is the largest gland of our body?
c) what is rainwater harvesting?
d) what is sphygmomanometer?
e)The energy of light in air
Answers
Answer:
it is the answer of 1st question
Answer:
a)Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. ... Cells have many parts, each with a different function.
b)The liver is the largest gland in the body
c)Rainwater harvesting is the collection and storage of rain, rather than allowing it to run off. Rainwater is collected from a roof-like surface and redirected to a tank, cistern, deep pit, aquifer, or a reservoir with percolation. Dew and fog can also be collected with nets or other tools.
d)
Manual sphygmomanometers are used with a stethoscope when using the auscultatory technique. A sphygmomanometer consists of an inflatable cuff, a measuring unit (the mercury manometer, or aneroid gauge), and a mechanism for inflation which may be a manually operated bulb and valve or a pump operated electrically.
e)This process is called Bioluminescence. Light energy is a form of electromagnetic radiation of a wavelength, which can be seen by the human eye.The frequency of light in air is 5 × 10^14 Hz .
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