Question

gave two application of pressure

Answer 1

Here ur ans ...
When we pull the plunger out on a syringe it causes the volume within the chamber to increase. As we know, this causes the pressuredo the opposite, which creates a vacuum attempting to re-pressurize back to atmospheric levels. Since the only fluid available on the other side of the needle tends to be a liquid such as blood, which gets sucked into the chamber, reducing the volume and increasing the pressure back to where it wants to be.

Answer 2

#applicable in converting biodegradable waste to convert into fossil fuel
#applicable in converting appropriate liquid to CNG