Common diseases caused by microorganisms in animals | Class VIII

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Microorganisms: Friend And Foe | NCERT Solution | Class VIII

Q.1. Fill in the blanks: a. Microorganisms can be seen with the help of a ____________. b. Blue green algae…

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Applications of Ultrasound | Sound | Class IX

Ultrasonic waves are used to establish ship-to-ship communication. Ultrasonic waves are used to determine the depth of a sea. It…

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