Page 264 - NS-2 Textbook
P. 264
METEOROLOGY 259
B. nimbostratus E. cirrus Vocabulary
C. cumulonimbus F. altocumulus
hygroscopic nuclei fog
8. How were early navigators often able to find previ-
cirrus stratus
ously uncharted islands?
cumulus nimbus
9. What is precipitation?
10. A. How do raindrops form? cmnulonimbus nin1bostratus
coalescence drought
B. What is coalescence, and how does it happen?
silver-iodide crystals thtmderhead
11. What two techniques are used in modem rainmaking?
cloud "seeding" hailstone
12. A. What is sleet?
B. What causes it to occur? "ceiling U advection fog
13. W1,at is hail, and how are hailstones formed? IIsea smoke" frontal fog
14. What is fog, and how is it formed? visibility advection
15. A. Where are the two most famous natural sea-fog
areas located?
B. Why do they have such frequent fog?

