Unit 12: Vocabulary book

I.  freak    -     hailstorm

     heavy    -   rain

     minor    -   earthquake

     flash      -   flood

     catastrophic         wildfire 

      II.

        1. A building was damaged by lighting.

  2. Electrical power was disrupted by an ice storm yesterday.

  3. Two people were severely injured.

  4. The village was struck by lighting.

III.       

  1. Freak accident is become after nature’s effect .

  2. Heavy traffic is become after a lot rain.

  3. Major earthquake is very much bad effect.

  4. minor injure is become after light accident or to drive careless.

On your own

                     

 Antarctica

Antarctica is Earth's southernmost continent, containing the geographic South Pole. It is situated in the Antarctic region of the Southern Hemisphere, almost entirely south of the Antarctic Circle, and is surrounded by theSouthern Ocean. At 14.0 million square kilometres, it is the fifth-largest continent in area after Asia, Africa,North America, and South America. For comparison, Antarctica is nearly twice the size of Australia. About 98% of Antarctica is covered by ice that averages 1.9 kilometres in thickness, which extends to all but the northernmost reaches of theAntarctic Peninsula. Antarctica, on average, is the coldest, driest, and windiest continent, and has the highest average elevation of all the continents.Antarctica is considered a desert, with annual precipitation of only 200 mm along the coast and far less inland. The temperature in Antarctica has reached −89 °C (−129 °F). There are no permanent human residents, but anywhere from 1,000 to 5,000 people reside throughout the year at the research stations scattered across the continent. Only cold-adapted organisms survive, including many types of algae, bacteria, fungi, plants, protista, and certain animals, such as mites, nematodes, penguins,seals and tardigrades. Vegetation, where it occurs, is tundra. Although myths and speculation about a Terra Australis  date back to antiquity, the Russian expedition of Fabian Gottlieb von Bellingshausen and Mikhail Lazarev on Vostok and Mirny first sighted a continental ice shelf in 1820. The continent, however, remained largely neglected for the rest of the 19th century because of its hostile environment, lack of resources, and isolation. Antarctica is a de facto condominium, governed by parties to the Antarctic Treaty System that have consulting status. The Antarctic Treaty was signed in 1959 by 12 countries; to date, 50 countries have signed the treaty. The treaty prohibits military activities and mineral mining, prohibits nuclear explosions and nuclear waste disposal, supports scientific research, and protects the continent'secozone. Ongoing experiments are conducted by more than 4,000 scientists from many nations.