Assessment Ch. 5 - 6

1. Assessment Ch. 5 - 6 • Answer the following questions from Chapters 5 – 6 on your paper. • You may use your notes or use the internet to go to the PowerPointsfor chapters 5 and 6 to find the information.

2. 1: The breakdown or changing of rocks at or near the Earth’s surface is called: • A: mass movement • B: sheet erosion • C: weathering • D: uplift • 2: Which of the following is not a cause of mechanical weathering: • A: dissolving • B: unloading • C: frost wedging • D: burrowing

3. 3: In which type of climate does chemical weathering occur most rapidly? • A: cold, dry • B: cold, wet • C: warm, dry • D: warm. Wet • 4: Organic matter in soil is called • A: regolith • B: humus • C:talus • D: loam

4. 5: A soil’s texture is determined by it’s • A: water content • B: mineral composition • C: thickness • D: particle sizes • 6: In soils with distinct soil horizons, the topmost zone is called • A: parent material • B: A horizon • C: B horizon • D: C horizon

5. 7: Human Activities that remove plants covering the soil cause soil erosion to • A: decrease • B: stay the same • C: increase • D: increase briefly , than stop • 8: Which of the following does NOT usually trigger mass movements? • A: Growth of native vegetation on slopes • B: Formation of oversteepened slops • C: Saturation of surface materials with water • D: Vibration of the ground during an earthquake

6. 9: When a block of material slides downward along a curved surface, the process is called • A: a rockslide • B: a rockfall • C: a slump • D: an earthflow • 10: Which of the following best describes a mudflow? • A: movement too slow to be observed directly • B: material moving downslope as a thick fluid • C: material falling freely through the air • D: sudden movement along a flat, inclined surface

7. 11: The energy for the water cycle comes from • A: ocean • B: sun • C: atmosphere • D: soil • 12: How does water move from plants to the atmosphere? • A: infiltration • B: precipitation • C: transpiration • D: condensation

8. 13: By what process do streams and rivers move material? • A: weathering • B: infiltration • C: mass wasting • D: erosion • 14: A river’s discharge is generally greatest • A: at it’s source • B: on it’s floodplain • C: at it’s mouth • D: at the sides of it’s channel

9. 15: When do streams and rivers deposit sediment? • A: When their velocity decreases • B: when they are in the midst of flooding • C: when their velocity increases • D: when they plunge over waterfalls • 16: A streams drainage basin (or watershed) is all the water that • A: flows into it • B: infiltrates from it into the ground • C: is removed from it for drinking water • D: is within 100 kilometers of it’s channel

10. 17: What is a stream’s bed load? • A: material that moves along it’s bottom • B: material that is carried in solution • C: material that floats on it’s surface • D: material that is carried in suspension • 18: Where is groundwater located? • A: zone of aeration • B: zone of reduction • C: zone of saturation • D: zone of distribution

11. 19: Water in an artesian well • A: dries up after a short amount of time • B: rises on it’s own under pressure • C: has been contaminated by saltwater • D: is heated by cooling igneous rock • 20: Caverns form when rocks such as limestone are dissolved by a mixture of water and • A: carbonic acid • B: sulfur dioxide • C: nitrogen • D: ammonia