Which one of the following is closely associated with westerlies? (A) Furious fifties (B) Boyle's gas law (C) Walker circulation (D) Rossby waves
(A) and (D) only
A and D only. The Furious Fifties are strong Southern Hemisphere westerlies around 50°–60°S. Atmospheric Rossby waves are large-scale meanders in the midlatitude westerly circulation. Boyle’s law is a gas law, and Walker circulation is a tropical east–west overturning circulation.
Consider the following salient features of Tornado and choose the correct option:
A. Tornadoes are very violent rotating systems of air
B. The pressure in the center of tornado is extremely low
C. The movement of tornadoes is in well-defined route and direction
D. The arrival of tornado is heralded by dark and thick clouds in the sky
Choose the correct answer from the options given below :