Question

Define planetary wind system?
&
Function of Human Heart..

Answer 1

PLANETARY WINDS The general, permanent circula­tion of surface winds throughout the world is.denoted by the term 'planetary winds'. The wind belts are basically controlled by the latitudinal pressure belts and by the forces produced by rotation of the earth.basically the rotaion of earth results the planetary winds and this planetary winds are responsible for climatic variation...
&

Human heart is cardiac muscle system...it's main fuction is the transportation of the required gases ans minerals by pumping the blood throughout the body..and avoiding the mixing of oxygenated and deoxygenated blood.....heart has four chambers....thus is the main organ of the body......