Like any tropical cyclone, there are few main requirements for typhoon formation and development: (1) sufficiently warm sea surface temperatures, (2) atmospheric instability, (3) high humidity in the lower to middle levels of the troposphere, (4) enough Coriolis effect to develop a low pressure center, (5) a pre-existing low level focus or disturbance, and (6) a low vertical wind shear.
I don't know what the choices are, but I hope this answer will help, IF THE ANSWER IS WRONG, JUST FIND ANOTHER ANSWERS, I'M SORRY IN ADVANCE, GOD BLESS Y'ALL:)
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Answer:
Like any tropical cyclone, there are few main requirements for typhoon formation and development: (1) sufficiently warm sea surface temperatures, (2) atmospheric instability, (3) high humidity in the lower to middle levels of the troposphere, (4) enough Coriolis effect to develop a low pressure center, (5) a pre-existing low level focus or disturbance, and (6) a low vertical wind shear.
I don't know what the choices are, but I hope this answer will help, IF THE ANSWER IS WRONG, JUST FIND ANOTHER ANSWERS, I'M SORRY IN ADVANCE, GOD BLESS Y'ALL:)