pilifande

  Most of the relief features are related with continental drift due to the fact that forces such as tensional and compression forces affected many parts of the world. Features which have been formed as a result of continental drift include; rift valleys, basins, plateau, highland ranges, coastal plains and associated features, block mountains etc. A rift valley is one of the spectacular features associated with continental drift. This is an elongated depression bordered by two in facing escarpments. It is formed due to either compressional forces or tensional forces or through differential uplift theory, basin and swell theory and the sea floor spreading theory. Plate tectonics also caused the vertical movement of the crust which led to the formation of Block Mountains. A block mountain is also known as a Horst. It is formed when the middle block bounded by more or less parallel faults is made to rise or is uplifted by the compressional forces. The best example of a block mountai...

  Tourism   is social, cultural and economic phenomena which entail the movement of people to the countries or places outside their usual environment for personal or business/professional purposes. In other words tourism can be defined as the travel for recreation, leisure, religious, family or business purposes usually for limited duration. this article is going to share with you 15 ways to improve tourism in Africa. serengeti Tanzanian The following are 15 strategies which can be used to promote and improve tourism industry in Africa Government and NGOs should provide mass education about the importance and need of tourism The government should make sure that strict ant - poaching laws and regulation are enforced. Extensive advertising using stamps posters, films and media such internet should be carried out. The responsible authorities should discourage and prevent burning and clearing of vegetation in areas surrounding the national parks and game reserves . Goverment sho...

  Non-Grouped Data Non-grouped data is just a list of values. The standard deviation is given by the formula: s means 'standard deviation'. S means 'the sum of'. means ' the mean ' Example Find the standard deviation of 4, 9, 11, 12, 17, 5, 8, 12, 14 First work out the mean: 10.222 Now, subtract the mean individually from each of the numbers given and square the result. This is equivalent to the (x - )² step. x refers to the values given in the question. x 4 9 11 12 17 5 8 12 14 (x - ) 2 38.7 1.49 0.60 3.16 45.9 27.3 4.94 3.16 14.3 Now add up these results (this is the 'sigma' in the formula): 139.55 Divide by n. n is the number of values, so in this case, is 9. This gives us: 15.51 And finally, square root this: 3.94 The standard deviation can usually be calculated much more easily with a calculator and this may be acceptable in some exams. On my calculator, you go into the standard deviation mode (mode '.'). Then type in the first value, pr...