It is often easier to determine if an object or organism possesses the characteristics of life rather than life itself.
a. true
b. false

True.

It is easier since there are a lot of theories that could sum up and provide evidence to support that an object has life than life itself.

One popular theory is the cell theory which states that all organism is made up of cells, cell that came from those pre-existing cells, and reproduce by those cells themselves.

It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on