Some students observing a classroom device being used noticed the below energy transformations. energy to mechanical to sound

Which device were the students most likely observing?

A triple beam balance measuring an object’s mass

A pencil sharpener plugged into a wall outlet

A projector displaying a diagram on the screen

A working flashlight used to light up a dark corner

this process is called "phosphorylation." a phosphate bond joins adenosine diphosphate to form adenosine triphosphate.

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.