IV. Select the letter of the correct answer. 21. What is the weight of air? a. Air mass b. air pressure c. humidity d. evaporations 22. What is the process by which a liquid changes into gas? a. Evaporation b. condensation c. precipitation d. none of the above 23-24. What are the two true facts about tornadoes? a. They are also called twisters. c. They are also called typhoons. b. It doesn't occur in Midwestern US d. Occur in warm ocean water. 25. What does a thermometer measure? air pressure b. wind direction c. temperature d. none of the above 26. What does a wind vane measure? air pressure b. wind direction c. wind speed d. none of the above 27. It is a rapidly rotating storm characterized by a low pressure area, strong winds and Organized thunderstorm. a. Hurricane b. tomado c. tropical cyclone d. none of the above 28. Typhoon has three parts, which is not? b. eye wall c. rain bands d. ears 29. It is the agency in-charge of informing and preparing the people of any weather disturbances. a. PAG-ASA b. DSWD c. DOLE d. MWSS 30. Where do most typhoon that hits the Phils. form? a. Atlantic Ocean b. Arctic Ocean c. Indian Ocean d. Pacific Ocean a. eye ion and mark an
