13. In the Groundwater Processes Ilab we found that areas of greater population

Question

13. In the Groundwater Processes Ilab we found that areas of greater population and development can result in: A Reduced water flow a. All answers are correct C. Overpumping of groundwater D. More pollution Black or 14. Color of soils is a useful characteristic which can indicate soil composition. brown color suggests: A. Organic poor soils B. Organic rich soils C. Soil that contain carbonates D. Soil permeability 15. In figure B, B1 is soil profile, while B2 is soil profile A. Bedrock, well developed B. Unglaciated, Bedrock C. Glaciated, Unglaciated D. Unglaciated, Glaciated 16. What do the presence of stalactites in a cave indicate? A. The water table used to be higher here B. This cave is in a karst area C. This cave is going to collapse soon D. Nearby human activity 17. An example of an ideal aquifer rock type is: A. Silt B. Sandstone C. Clay D. Shale 18. Soils form by which of the following factors: A. Climate B. All of the above C. Topographic material D. Parent material

Explanation / Answer

13. In the groundwater processes II lab we found that areas of greater population and development result in overpumping of groundwater.

Greater population and development indicates more need of water. This causes overpumping of groundwater.

14. Colour of soils is a useful characteristic which can indicate the soil composition. Black or brown colour suggests organic rich soil.

Black soil is black coloured soil due to enrichment of high quality humus layer more than depth of 40cm. These are very important as they have high crop productivity.

16. The presence of stalactites in a cave indicates this cave is in a karst area.

Karst topography produced due to erosion or dissolution of limestone bedrock by groundwater activity. The characteristic features produced by this process are stalactite and stalagmites. Stalactites are the feature hanging from the roof and stalagmites occur in the floor of the cave. These are produced due to precipitation of minerals from groundwater dripping through the cave.

17. An example of an ideal aquifer Rock type is sandstone.

Sandstone is a rock with porosity and permeability means having adequate pore spaces and have the ability to transmit the water through the pore spaces. Thus, it acts as an good aquifer.

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