drrr reviewer for exam, Lecture notes of Earth science

Download drrr reviewer for exam and more Lecture notes Earth science in PDF only on Docsity! DRRR REVIEWER (1st Quarter, 2nd examination) PER B- AR;CELU VOLCANO - is an opening in earth’s crust 2 Classification of Volcano: ACTIVE - (erupting and dormant) EXTINCT V - volcanic quakes with reverberating noises. O - occurrence of dry springs or well within the vicinity of the volcano. Tremors may occur frequently. L - landslides and falling of rocks are common even without heavy rains. C - crater changes occur. It glows signifies presence of magma; increased and grayish steam emissions. A - around the volcano there is a swelling, tilting , fissuring due to magma intrusion. N - noticeable drying up of crops and vegetation a few meters from the volcano. Differences in the chemical content of the body of water near the volcano. O - old thermal areas are reactivated and new thermal areas developed E - eruptions of volcano can generate a relentless trauma on our lives. R - really affect the possessions we own, our habitation and the way we live. U - usually take place with timely warnings not like earthquakes that are unexpected. P - people should know that before a volcano erupts there are warning signs. T - there is time to prepare before volcanic eruption occurs. I - increasing temperature around the volcano that results to withering of plants around. O - occurrence of unusual sounds and continuous emissions of steam, N - not typical behaviors of animals and earthquakes S - Signs of an impending volcanic eruption. HAZARDS OF VOLCANIC ERUPTION: ● Lahar ● Ash Fall ● Pyroclastic Flow ● Ballistic Projectiles ● Volcanic Gasses ● Lava Flows SINKHOLE - A sinkhole is described as a naturally occurring depression or hole on the earth's exterior landscape as a result of chemical disbanding of carbonated rocks and karst progressions. It usually occurs in areas where large deposits of lime stones, carbonate rocks, and salt beds are seen together with circulating ground water. VULNERABLES ARE FOR SINKHOLE HYDROMETEOROLOGICAL HAZARDS S - similar names (hurricane, storm, tropical cyclone, willie willie, tornado, bagyo) T - tumultuous strong wind O - originate from the word "TIPON", "TUFAN","TAI FUNG" "TOO FAN" R - rainfall is heavy M - may visit the Philippines 12- 20 times in a year A typhoon is described as a " tumultuous storm " due to its large storm system that moves in spiral or circular motion producing violent winds within hundreds of kilometers or miles in diameter. Meteorologist also illustrates typhoons as a mature tropical cyclone that develops in the western part of South Pacific Ocean known as the Northwestern Pacific Basin . A virulent storm originating from the Atlantic Ocean and Eastern Pacific is known as " Hurricane ". If it originates in the Indian Ocean, they are known as " Tropical Cyclones ". In 1550, " tipon " is described as a violent storm". The Greeks called typhoon " whirlwind ", based on a character personified as a giant, father of the winds. The word " cyclone " was first recorded during a voyage of Caesar Frederick to the East Indies. Chinese uses the word " tai fung " describing a " great wind " while Indian has " toofan " pertaining to "big storm." The word " Tufan " is an Arabic Persian and Hindi term meaning " big cyclonic storm ". Filipinos refer to it as " Bagyo ". Australians called it " willie-willie " while people from South America refer to it as 'tornado ." " Tropical Cyclone " is the term used for strong winds coming from Southeast and Southwest Indian Ocean and Southwest Pacific Ocean. Crossing the west dateline of the Northwest Pacific Ocean is it termed as " typhoon " while passing through the east dateline of the Northwest Pacific Ocean also known as South Pacific Ocean and North Atlantic Ocean it is termed as " hurricanes ." " Severe Cyclonic Storm " is the term used in North Indian Ocean. CLASSIFICATION OF TROPICAL CYCLONES ● Tropical Depression ● Tropical Storm ● Severe Tropical Storm ● Typhoon ● Super Typhoon