1.

The speed of sound in air at stp is 300 m/sec if the air pressure becomes double the temperature remaining the same,the speed of sound would become ​

Answer»

Photosynthesis takes in the carbon dioxide produced by all breathing organisms and REINTRODUCES oxygen into the atmosphere. ( IMAGE credit: KPG_Payless | Shutterstock) Photosynthesis is the process used by plants, algae and certain BACTERIA to HARNESS energy from sunlight and turn it into chemical energy.



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