Water evaporating from a puddle is an example of a physical property. physical change. chemical property. chemical change.

physical change.

Explanation:

A chemical change is defined as a change in which a change in chemical composition takes place. A new substance is formed in these reactions.  Example: Corrosion of iron.  

Chemical property is defined as the property of a substance which becomes evident during chemical changes. Example: Reactivity with other substances

A physical change is defined as a change in which there is alteration in shape, size etc. No new substance gets formed in these reactions.  Example: evaporation of water

Physical property is defined as the property of a substance which becomes evident during physical changes. Example: Boiling point

Thus Water evaporating from a puddle is an example of a physical change.

i think that the answer is c

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.