34. What color sand would you expect to find on beaches on Santorini, a mafic vo

Question

34. What color sand would you expect to find on beaches on Santorini, a mafic volcanic is a. mostly black sand b. mostly tan sand c. mostly green sand d. mostly red sand 35. If you decide to begin a marble headstone company, where should you do business to ensure that your headstone lasts as long as possible? a. The tropics b. California c. It doesn't matter 36. In which environment would you find the most soil? a. Antarctica b. mountain top c. recent lava flows from Kilauea d. jungle 37. A potato farmer who farms on a gentle slope in a very rainy area needs advice on how to reduce soil erosion on his farm. What two suggestions would make the most sense? a. Cutting terraces (stair-like steps) into the slopes and planting some clover to grow between harvest and the next planting season b. Plowing along the contours and leaving the roots in the ground to hold the soil in place c. Planting tall crops in between the potato plants and flipping the crop residue over so it nourishes the sSoll

Explanation / Answer

34) If the island is composed of mafic volcanic rocks, their colour is mostly black. Therefore their erosion would mainly produce black coloured soil as because the soil is the product is erosion.

35) A company would last long only if it is not subjected to tectonic disturbances and the availability of the resources are good. Therefore out of the options given tropics would be the most favourable condition under which the company would last longer. California is frequently associated woth earthquakes for which there would be a risk for the set up of the any sort of company. Also the formation of marble is not suitable there at california. Therefore the correct answer to the question would be The tropics.

36)The soil is the erosional product of the rocks. The erosion would be amximum at the jungles therefore the answer would be Jungle.

37) Since the farmer is trying to establish his plants in a rainy area, therefore the erosional rate has to be kept in mind before proceeding for the next step. Cutting terraces and planting clovers would be considered the best option as because the repeating terraces would reduce the flow and hence would reduce the erosion.

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