Nature study of EARTHQUAKE,FLOOD
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EARTHQUAKE
Shaking motion of an earthquake is the result of a sudden release of energy. An earthquake occurs when stress, building up within rocks of the earth's crust, is released in a sudden jolt. Rocks crack and slip past each other causing the ground to vibrate. Seismology is the scientific study of earthquakes and related phenomena. The primary effects of earthquakes are ground shaking, ground rupture, landslides, tsunamis, and liquefaction. Fires are probably the single most important secondary effect of earthquakes. Some of the common impacts of earthquakes include structural damage to buildings, fires, damage to bridges and highways, initiation of slope failures, liquefaction, and tsunami. ... Buildings can be designed to withstand most earthquakes, and this practice is increasingly applied in earthquake-prone regions. Here are a few tips for protecting yourself if the ground starts to shake. If you are inside when an earthquake hits, stay inside and get under a heavy table or desk. Stay away from windows, skylights, doors and things that could fall. One of the biggest hazards during an earthquake is falling debris and furniture. Earthquakes usually cause severe damage to urban centres, resulting in the loss of life and damage to homes and other infrastructure. ... Earthquakes sometimes trigger tsunamis, landslides and occasionally volcanic activity
FLOOD
Floods are the most frequent type of natural disaster and occur when an overflow of water submerges land that is usually dry. Floods are often caused by heavy rainfall, rapid snowmelt or a storm surge from a tropical cyclone or tsunami in coastal areas. Floods are an area of study of the discipline hydrology and are of significant concern in agriculture, civil engineering and public health. ... Floods often cause damage to homes and businesses if they are in the natural flood plains of rivers. Today, hydrologists study past flood patterns to help predict where and when floods will happen in the future. The predictions are only estimates, however. Weather, land, and climate can all change. Deforestation is wiping out trees, causing increased risk for flooding, soil erosion, and drought. Failure to rotate crops, in which farmers alternate which crops are grown per season, also can lead to decreased nutrients in the soil and thus cause a decrease in plant life, which leads to flooding.
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seismology is the scientific study of earthquakes and related phenomena, such as volcanic eruptions. Earthquakes occur when the tectonic plates that make up the Earth's crust shift and release energy in the form of waves.
floods are an area of study in the discipline of hydrology . They are the most common and widespread natural severe weather event. Floods can look very different because flooding covers anything from a few inches of water to several feet.
Explanation:
primary effects of earthquakes are ground shaking, ground rupture, landslides, tsunamis, and liquefaction. Fires are probably the single most important secondary effect of earthquakes.
Where soft soils are accompanied by a high water table, earthquake shaking may trigger soil liquefaction, flooding the area with sand and ground water ejected to the surface. Large landslides can also fill river valleys creating an unstable dam that can flood
Floods are the most frequent type of natural disaster and occur when an overflow of water submerges land that is usually dry. Floods are often caused by heavy rainfall, rapid snowmelt or a storm surge from a tropical cyclone or tsunami in