1) What is a typhoon? a) A powerful tropical cyclone in the Northwest Pacific b) A volcanic eruption c) A type of earthquake 2) What part of the typhoon is known for calm weather? a) The eye b) The eyewall c) The rainbands 3) What is the main energy source of a typhoon? a) Cold air from the poles b) Warm ocean water c) Wind from mountains 4) What is the minimum wind speed for a storm to be classified as a typhoon? a) 74 km/h b) 118 km/h c) 39 km/h 5) What factor weakens a typhoon the most? a) Increasing humidity b) Moving over warm water  c) Moving over land 6) Which of the following is NOT an effect of a typhoon? a) Heavy rainfall b) Earthquake tremors c) Storm surge 7) Which weather instrument is commonly used to monitor typhoons? a) Satellite b) Barometer c) Seismometer 8) What agency in the Philippines monitors typhoons? a) DENR b) PHIVOLCS c) PAGASA 9) In which direction do typhoons usually spin in the Northern Hemisphere? a) Counter-clockwise b) Upwards c) Clockwise 10) What is the term for the circular motion of winds in a typhoon? a) Circulation b) Revolution c) Rotation

Understanding Typhoon

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