Answer:
option (d)
Explanation:
Energy is defined as the capacity to do work.
Energy can neither be created and nor be destroyed, it can transform from one form to another.
The SI unit of energy is Joule and teh commercial unit of energy is kilowatt hour.
There are several forms of energy.
1. kinetic energy
2. potential energy
3. mechanical energy
4. Solar energy
5. Sound energy
Answer:
A. the sharing of electrons
Explanation:
Covalent bonds share electrons.
Answer: 
Explanation: The time taken by the object to reach the ground depends up on the vertical velocity of the object.
The object horizontal velocity component only moves the object in forward direction and does not have any effect vertically
as the object is launched horizontally its initial vertical velocity is zero

the object experiences downward fall due to gravitational acceleration only since there is no air resistance
therefore a=g
the distance covered =s=h
now the kinematic equation could be used