35.  Arctic consists of  Arctic Ocean, adjacent seas, and parts of  Alaska ( United States),  Canada,  Finland,  Greenland ( Denmark),  Iceland,  Norway,  Russia, and 
  Sweden.
 36.  Highlands is a historic region of  Scotland. Culturally,  Highlands and  Lowlands diverged 
 from  later Middle Ages into the modern period, when Lowland Scots replaced Scottish Gaelic 
 throughout most of  Lowlands.
 37.  equator divides the planet into  Northern Hemisphere and  Southern Hemisphere and is 
 located at 0 degrees latitude, the halfway line between  North Pole and  South Pole.
 38.  Ruhr valley, is a polycentric urban area in  North Rhine-Westphalia,  Germany. It consists of 
 several large cities bordered by  rivers Ruhr to  south, Rhine to  west, and Lippe to  
 north. 
 39.  Himalayas is a mountain range in  South and  East Asia separating the plains of  Indian 
 subcontinent from  Tibetan Plateau. The range has many of Earth's highest peaks, including the 
 highest,  Mount Everest, at the border between  Nepal and  China.
 40.  Middle East is a transcontinental region in  Afro-Eurasia which generally includes  Western 
 Asia (except for  Transcaucasia), all of  Egypt (mostly in  North Africa), and  Turkey (partly 
 in  Southeast Europe).
 41.  Grand Canyon is a river valley in the Colorado Plateau. It was carved by  Colorado River in  
 Arizona and exposes uplifted Proterozoic and Paleozoic strata. These rock layers record much of the early 
 geologic history of  North American continent. 
 42.  Silicon Valley is a region in the southern part of  San Francisco Bay Area in  Northern 
 California that serves as a global center for high technology and innovation.
 43.  Lake District, also known as  Lakes or Lakeland, is a mountainous region in  North West 
 England.
 44. Continental Europe, also referred to as  mainland Europe or simply  Continent, is  
 continent of Europe, explicitly excluding  European islands, such as  British Isles,  Iceland, 
  Balearic Islands,  Corsica,  Italian islands, and  Greek islands.
 45.  Australia is an independent state comprising  Australian mainland and several islands. ___ 
 Tasmania is the biggest island in  Australia and is separated from  Mainland Australia by  
 Bass-Strait. ___ island of Tasmania is situated about 1,600 miles from  Antarctica. 
 46.  Niagara Falls is a group of three waterfalls spanning the border between  province of Ontario in 
  Canada and  state of New York in  United States.
 47.  Death Valley is a desert valley in  Eastern California, in  northern Mojave Desert, bordering 
  Great Basin Desert. It is one of the hottest places on Earth, along with deserts in  Middle East and 
  Sahara.
 48.  Gibraltar is a British Overseas Territory located at the southern tip of  Iberian Peninsula.