Which instrument is used to measure the air pressure ?

Low pressure systems and high pressure system prevail in ?

Air mass is a large body of air with fairly uniform properties of temperature and ?

Which one of the following is developed from severe thunder storms ?

Intertropical convergence zone normally occurs at?

Which of the following event is closely associated with the pressure changes in the central pacific and australia ?

Which of the following force causes deflection in the direction of the wind ?

The wind blowing from land to sea is called ?

The cold air blows from the poles to middle latitudes,is known as ?

Which are caused by the intense convection on moist hot days ?