Question

what should be the chief concern of the whole mankind? what other concerns divert people 's attention from this?​

Answer 1

Answer:

Archimedes' principle is named after Archimedes of Syracuse, who first discovered this law in 212 BC.[4] For objects, floating and sunken, and in gases as well as liquids (i.e. a fluid), Archimedes' principle may be stated thus in terms of forces:

Any object, wholly or partially immersed in a fluid, is buoyed up by a force equal to the weight of the fluid displaced by the object

—with the clarifications that for a sunken object the volume of displaced fluid is the volume of the object, and for a floating object on a liquid, the weight of the displaced liquid is the weight of the object.[5]

Answer 2

Explanation:

Charity should be the chief concern of the whole mankind. The other concerns which divert people's attention from this are religion, faith, hopes and beliefs.