
Call 1800-123-2003
"Smartindia is the best online tool for school students." Ms Deepa Chandran, Principal Anchal
"Smartindia is one of the best supplementary education tool for school students." Ms Pooja, Principal
How does wasp and beetle produce sound? |
Beetle make sounds, usually scraping their mouthparts together or rubbing their legs on their bodies. Some beetles that live in dead wood drum and make vibrations. The buzzing sound is from the wings, which beat around 250 times per second. |