What are conserved quantities?

What are the conserved quantities in nature? Name any two.

Are all conserved quantities scalar?

Are all conserved quantities scalar?

Is temperature a conserved quantity in transfer of heat between two bodies at different temperatures.

What are conservative forces ? Show that gravitational force is a conservative force

Assertion: According to law of conservation of machainical energy change in potential energy is equal and opposite to the change in kinetic energy Reason: Mechanical energy is not a conserved quantity.

What are conserved physical quantities of nature ?

Which one of the following quantities is not a conserved quantity according to the laws of physics?