Question

what is president and what the work of president
kindly explain in easy language

Answer 1

The President is considered the country's chief executive.

He or she develops federal policies, prepares national budgets, enforces federal laws, and appoints federal officials. 

thanks

Answer 2

$\huge\red{\boxed{\blue{\mathcal{\overbrace{\underbrace{\fcolorbox{blue}{aqua}{\underline{\red{answer}}}}}}}}}$

➻The collision of the particles with the walls of the vessels give rise to the pressure of the gas.