Question

1.why is it difficult to hold a xhool bag having a straps made of thin and strong string?
2.what do you mean by buogancy?

3.why does an object float ot sink when placed on the surface of water?​

Answer 1

1.It is difficult to hold a school bag having a thin strap because the pressure on the shoulders is quite large. This is because the pressure is inversely proportional to the surface area on which the force acts.

2..the tendency of a body to float or to rise when submerged in a fluid testing an object's buoyancy. b chemistry : the power of a fluid to exert an upward force on a body placed in it the buoyancy of water also : the upward force exerted.

Answer 2

Explanation:

Photosynthesis : is the process of green plants making their own food using water carbon dioxide and sunlight.