37. Suppose you walk barefoot on the hot street and it burns your toes. What kind of heat transfer is being exhibited?
A Conduction B. Convection C. Radiation
D. Refraction
38. What will happen when a positively charged object is place near to another positively charged material?
They will
A. attract
B. combine
C. neutralize D. repel
39. How are places on earth determined in an east or west direction? Through
A lines of latitude
C. the equator
B. lines of longitude
D. thr tropic of Capricom
40. Where in the flat map of the World is the Philippne Sea located?
A. Eastern B. Northern D. Southem D. Western
41. Which of the following human activities contribute to global warming?
I. Planting trees in wider areas
II. Burning of fossil fuels
M. Deforestation
IV. Valley Breeze
A. I only
C. I, II, III, IV
B. II, III,
D.IV only
42. Which of the following greatly cause weather changes?
I. Use of motor vehicles
II. Cutting down trees
III. Use of products with CFC
IV. Massive clearing and destruction of forests due to logging
A. I only
C. I and II only
B. Ill and lv only D, I, II, III and IV
13. What happens to the space that was left vacant by the rising warm air?
A Cool air moves down to replace it.
B. Cool air moves up and down.
C. Warm air moves in any direction,
D. Warm air stays in place.​