6. Which of the following is an impending sign for rainfall-induced landslide? A. Lower water levels of the creeks. B. Trees are swaying with the wind. C. New cracks at the foundations of buildings and houses. D. Unusual noises, such as breaking trees, or knocking boulders together. 7. In other countries, some of the large sinkholes that form on their lands are used as dumpsites. If the Philippines would adopt this kind of activity, what do you think will happen? A. The country’s problem with trash will have a solution. B. Water resources near the sinkholes could be contaminated. C. The sinkhole may further collapse if tons and tons of trash will be thrown in the hole. D. All of the above. 8. Which of the following does NOT cause a landslide? A. Rocks flowing down the stream. B. Trees being cut down to make way for development. C. Soil that have fractures and is weak. D. Slopes losing the vegetation due to drought. 9. The Juan corporation bought a piece of land to build their new project. Together with the local government unit they identified possible sinkholes that may appear on the land. They observed that there is only a thin layer of soil covering the bedrock underneath the land and the bedrock is starting to erode and to have a depression. What type of sinkhole did the land surveyors identified? A. solution sinkholes B. dissolution sinkholes C. cover collapse sinkhole D. cover subsidence sinkhole 10.Which of the following is a geological hazard? A. sinkhole B. earthquake C. landslides D. All of the above. 11.The Juan corporation wants to create a subdivision overlooking the sea. They acquired a good sum of land on a mountain slope near the bay but before they can proceed with construction, they need to cut down all the trees in the area. What do you think will happen if torrential rain pours after all the trees were cut down? A. Soil erosion due to drought could transpire. B. A sinkhole might form due to the presence of limestone in the area. C. Rainfall-induced landslide is prevalent during the typhoon sea