vivid description nature

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  1. 1. NATURE NATURAL DISASTERS Nature, in the broadest sense, is equivalent to the natural, physical, or material world or universe. "Nature" refers to the phenomena of the physical world, and also to life in general. It ranges in scale from the subatomic to the cosmic. A natural disaster is a major adverse event resulting from natural processes of the Earth; examples include floods, volcanic eruptions, earthquakes, tsunamis, and other geologic processes.
  2. 2. An avalanche is a rapid flow of snow down a slope. Avalanches are typically triggered in a starting zone from a mechanical failure in the snowpack (slab avalanche) when the forces on the snow exceed its strength but sometimes only with gradually widening (loose snow avalanche).
  3. 3. A cyclone is an area of closed, circular fluid motion rotating in the same direction as the Earth. This is usually characterized by inward spiraling winds that rotate anti- clockwise on the Northern Hemisphere and clockwise in the Southern Hemisphere of the Earth. Most large-scale cyclonic circulations are centered on areas of low atmospheric pressure. The largest low- pressure systems are cold-core polar cyclones and extra tropical cyclones which lie on the synoptic scale.
  4. 4. An earthquake is the result of a sudden release of energy in the Earth's crust that creates seismic waves. The seismicity or seismic activity of an area refers to the frequency, type and size of earthquakes experienced over a period of time. Earthquakes are measured using observations from seismometers.The moment magnitude is the most common scale on which earthquakes larger than approximately 5 are reported for the entire globe.The more numerous earthquakes smaller than magnitude 5 reported by national seismological observatories are measured mostly on the local magnitude scale, also referred to as the Richter scale
  5. 5. SAND STORM A dust storm or sand storm is a meteorological phenomenon common in arid and semi-arid regions. Dust storms arise when a gust front or other strong wind blows loose sand and dirt from a dry surface. Particles are transported by saltation and suspension, a process that moves soil from one place and deposits it in another. The Sahara and drylands around the Arabian peninsula are the main terrestrial sources of airborne dust.
  6. 6. SNOW STORM Snowstorm (also known as winter storm) is an event in which the varieties of precipitation are formed that only occur at low temperatures, such as snow or sleet, or a rainstorm where ground temperatures are low enough to allow ice to form (i.e. freezing rain). In temperate continental climates, these storms are not necessarily restricted to the winter season, but may occur in the late autumn and early spring as well. Very rarely, they may form in summer.
  7. 7. BLIZZARDS A blizzard is a severe snowstorm characterized by strong sustained winds of at least 56 km/h (35 mph) and lasting for a prolonged period of time typically three hours or more. A severe blizzard has winds over 72 km/h (45 mph), near zero visibility, and temperatures of 12 C (10 F) or lower.
  8. 8. volcano A volcano is an opening, or rupture, in the surface or crust of the Earth or a planetary mass object, which allows hot lava, volcanic ash and gases to escape from the magma chamber below the surface. On Earth, volcanoes are generally found where tectonic
  9. 9. FOREST FIRE A wildfire is an uncontrolled fire in an area of combustible vegetation that occurs in the countryside or a wilderness area.Other names such as brush fire, bushfire, forest fire, desert fire, grass fire, hill fire, peat fire, vegetation fire, and veldfire may be used to describe the same phenomenon depending on the type of vegetation being burned.
  10. 10. Because of seismic and volcanic activity at tectonic plate boundaries along the Pacific Ring of Fire, tsunamis occur most frequently in the Pacific Ocean, but are worldwide natural phenomena.They are possible wherever large bodies of water are found, including inland lakes, where they can be caused by landslides and glacier calving.
  11. 11. TYPHOON A typhoon is a mature tropical cyclone that develops in the northwestern part of the Pacific Ocean between 180 and 100E. This region is referred to as the northwest Pacific basin.[1] For organizational purposes, the northern Pacific Ocean is divided into three regions: the eastern (North America to 140W), central (140W to 180), and western (180 to 100E).
  12. 12. CLOUDY The state of the weather when the clouds are conspicuously present, but do not completely dull the sky or the day at any moment.
  13. 13. EMERGENCY An emergency is a situation that poses an immediate risk to health, life, property, or environment. Most emergencies require urgent intervention to prevent a worsening of the situation.
  14. 14. WILD Growing, or living in a natural state, without human help, not domesticated, cultivated, or tamed.
  15. 15. YEAH! ITS MOVIE TIME (: 0 http://www.youtube.com/watch?v=ETIPY -QBAj0 http://www.youtube.com/watch?v=QfmR f8iOBkI http://www.youtube.com/watch?v=xe3mlHq 0wcs
  16. 16. THANKS! (: DONE BY SRAJAN.