Question

Write a short note on- 1. earthquake 2. drought 3. flood 4. landslide 5. volcanic eruption 6. tsunami 7. global warming 8. bhopal gas tragedy

Answer 1

plzz mark it as brainliest answer........ 1 ]An earthquake is a shaking of the ground caused by the sudden breaking and movement of large sections (tectonic plates) of the earth's rocky outermost crust. The edges of the tectonic plates are marked by faults (or fractures). Most earthquakes occur along the fault lines when the plates slide past each other or collide against each other. 2] A drought is considered a period of abnormally dry weather that causes serious hydrological imbalance in the area. Historically, droughts affect more people than a heat wave. Not only are there the high temperatures and lack of precipitation, but also the agricultural, economic, and sociopolitical impact on inhabitants within the affected region, as well as those dependent upon goods and services from that area. 3] Flooding is when the water level in a creek, river, lake or the sea rises and covers land that is usually dry. Whilst some floods occur without problem, others are devastating, causing large-scale destruction and significant loss of life. Flooding is experienced all over the world and in some countries such as Bangladesh, flooding occurs regularly. Landslides are rock, earth, or debris flows on slopes due to gravity. They can occur on any terrain given the right conditions of soil, moisture, and the angle of slope. Integral to the natural process of the earth's surface geology, landslides serve to redistribute soil and sediments in a process that can be in abrupt collapses or in slow gradual slides. Such is the nature of the earth's surface dynamics. Also known as mud flows, debris flows, earth failures, slope failures, etc., they can be triggered by rains, floods, earthquakes, and other natural causes as well as human-made causes, such as grading, terrain cutting and filling, excessive development, etc. 5] A volcano can be simply defined as a rupture or an opening on the crust of a planet like earth. This opening allows hot ash, molten rock and gases to blow off from the underground spaces. Volcanoes generally acquire shape of a mountain. Volcanoes are usually found at places where tectonic plates get converged or diverged 6] A tsunami (pronounced tsoo-NAH-mee) is a series of waves, made in an ocean or other body of water by an earthquake, landslide, volcanic eruption, or meteorite impact. Tsunamis can cause huge destruction when they hit coastlines. Some people call tsunamis “tidal waves”, but these large waves really have little to do with tides, so the term “tidal wave” does not really suit them. 7] Global warming is a topic that is never free from debate, whether you have heard about it by this main buzz word or in relation to others such as 'the greenhouse effect' or even 'climate change' as it is more commonly referred to these days, it is something that never fails to spark controversy when spoken about. 8] Twenty-five years have passed since that night of terror and death in Bhopal, which saw a cloud of deadly gases explode out of a faulty tank in a pesticide factory and silently spread into the homes of sleeping people. Although no official count of casualties has ever been done, estimates based on hospital and rehabilitation records show that about 20,000 people died and about 5.7 lakh suffered bodily damage, making it by far the world's worst industrial disaster ever.