4th quarter

3. geological process by which subsidence natural sinkhole are formed.
5. type of soil mainly composed of sand-sized or finer particles
8. refers to the large amount of water covering a land area which is other dry.
10. a dense, towering vertical cloud, forming from water vapor carried by powerful upward air currents.
11. also known as rock avalanche
12. solid, hard material with minerals and metals that are larger than the soil material
13. convergence of alluvial fans into a single group of deposits against a slope.
14. occurs during thunderstorms or electrical storms

1. When the wind speed is able to lift the top layer of sand from the ground, and push it in every imaginable direction.
2. the process in which sediments compact under pressure
4. tropical cyclones with a wind speed greater than 118 kph
6. the ability for fluids (gas or liquid) to flow through rocks
7. It is the water produced by melting snow and ice, often triggered by rainfall or warming weather.
9. a place, typically a large, deep pit, from which stone or other materials are or have been extracted.
15. form of precipitation comes in the form of balls or irregular lumps of ice, which is caused by thunderclouds.