Which of the following statements are correct?
(A) Geostrophic wind is a result of balance of pressure gradient force and Coriolis force.

(B) Thermal wind is the vector difference of geostrophic wind at two different altitudes.

(C) Gradient wind is a result of balance of pressure gradient force, Coriolis force, and centrifugal force.

(D) Coriolis force deflects the wind towards right in the southern hemisphere.
Choose the correct answer from the options given below:

Correct option is C

Information Booster:
(A) Geostrophic Wind:
· Correct. Geostrophic wind results from the balance between the pressure gradient force (moving air from high to low pressure) and the Coriolis force (deflecting air due to Earth's rotation).
(B) Thermal Wind:
· Correct. Thermal wind is defined as the vector difference between geostrophic winds at two different altitudes, caused by temperature gradients.
(C) Gradient Wind:
· Correct. Gradient wind is a result of the balance between the pressure gradient force, Coriolis force, and centrifugal force, occurring in curved flow around high or low-pressure systems.
(D) Coriolis Force in the Southern Hemisphere:
· Incorrect. In the southern hemisphere, the Coriolis force deflects winds towards the left, not the right. The deflection is to the right in the northern hemisphere.