Answer Happy

Civil engineering ( Geology ) please do asap
Please do part 1 all and correct as soon as possible
. Part 1. Multiple choices (2 scores each, total 30) 1. The water table of unconfined water is ) A Virtual surface B Physical surface C Non-subground water surface D Unfluctuating surface 2. The bedding planes of sedimentary rocks belong to discontinuities. A Primary B Tectonic C Secondary D Fracture 3. ROD is used as an index to evaluate the A Integrity of rock masses B Permeability of strata C Strength of rock masses D Mineral hardness. 4. Terraces of rivers ). A are usually located on the protruded banks B can be easily submerged by routine floods C are formed by the downcutting erosions D are usually located on the concave banks 5. From the upstream to the downstream of a river, ( ). A the erosion is gradually decreasing B the vertical erosion is gradually decreasing C the lateral erosion is gradually decreasing D the deposition is gradually decreasing 6. Confined water can be easily formed in a/an ( ). A anticline B syncline C normal fault D dome 7. The columnar joint of basalt belong to C). A primary discontinuity B tectonic discontinuity C secondary discontinuity 8. Which of the following statements on the flow of water in joints is not true ( ). A It is more favorable for water to flow in calcareous infilling than in argillaceous infilling. B A lengthy joint is more favorable for water flow. C Densely spaced joint set is more favorable for water flow. D Open and rough joint is more favorable for water flow than closed and smooth joint. 9. Vertical erosion of rivers mainly occurs in ( ) A estuary B upstream C downstream D confluence of main stream and its tributaries 10. Which of the following statements on terraces is right? ( ) A the upper layer is coarse pebble, the lower layer is sand and silt. B the upper layer is sand and silt, the lower layer is coarse pebble. C both the upper layer and the lower layer are sand and silt. D both the upper layer and the lower layer are pebble. 11. Confined water ( ). A is easy to be contaminated and affected by climate B is easy to be affected by climate, but not easy to be contaminated. C is not easy to be contaminated and affected by climate D is easy to be contaminated, but not easy to be affected by climate 12. Darcy's law can only be used in ( A laminated flows having a Reynolds number smaller than 10 B All non-laminated flows C All laminated flows D All flows 13. The erosion of underground water to reinforced concrete is mainly attributed to ) A CO3-1 ion B NO3-1 ion CSO4-2 ion D SiO42 ion 14. Underground water can be divided into 3 types ( ). A Vadose water, unconfined water and confined water B Pore water, unconfined water and confined water C Crevice water, unconfined water and confined water D Vadose water, perched water and unconfined water 15 Which of the following weathering is most likely to happen in Amazon forest. ( ) A Physical and chemical weathering B Physical and biological weathering C Biological weathering D Chemical and biological weathering