Explain simple tense , continuous tense and perfect tense

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Simple ) Present Indefinite Tense :

I eat mangoes often.

The Sun rises in the East.

( To describe regular, habitual, routine actions, and universal or scientific truths.)

Present Continuous Tense :

I am eating mangoes now.

( To describe an action which is going on at the time of speaking.)

Present Perfect Tense :

I have eaten a mango just now.

( To describe an action which has just now or recently been completed, and which has a connection with, or impact on, the present time or place.)

Explanation:

the unsaturated fatty acid is a fat consist of one or more double bond in the fatty acid chain. if it contains one double bond then called as monounsaturated fatty acid however if, it contains more than one bonds called as a polyunsaturated fatty acid. true fatty acids are called unsaturated fatty acids as it reduces the risk of high blood cholesterol and good for health.

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