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Answers
Answer:
1. earthquakes and volcanoes
2.A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates are diverging or converging, and most are found underwater.
3.An earthquake is caused by a sudden slip on a fault. The tectonic plates are always slowly moving, but they get stuck at their edges due to friction.
4.Gurgaon is the riskiest
Delhi sits on top of three active seismic fault lines: Sohna fault line, Mathura fault line and Delhi-Moradabad fault line. However, Gurgaon sits on seven fault lines, making it the riskiest area in Delhi NCR. If any of these becomes active, it can cause an earthquake of up to 7.5 magnitude.