Top 10 world facts Selected as the most interesting among geography related questions in Geography quiz Which religion is the most popular in the world?Christianity. The CIA's World Factbook gives the distribution of religions as Christian 33.39%, Muslim 22.74%, Hindu 13.8%, Buddhist 6.77%, Sikh 0.35%, Jewish 0.22%, Baha'i 0.11%, other religions 10.95%, non-religious 9.66%, atheists 2.01%. (2010 est.)Created by: globalquiz.orgIslam facts » Which major division within Christianity is the most popular in the world?Roman Catholic. The Roman Catholic Church is the world's largest Christian church, with 1.2 billion members worldwide. There are about 600 millions of Protestants and 350 million of Orthodox Church members.Created by: TeddyChristianity facts » China, India and the United States are the three most populous countries. Which country comes fourth?Indonesia has 237 millions of inhabitants. It is more than Brazil (201), Pakistan (184) and Nigeria (173), Bangladesh (152), Russia (143) and Japan (127)Created by: globalquiz.orggeography of Indonesia facts » What is the global population today? (It was 3 billion in 1960)7,1 billions. The global population raised twice during the last 50 years. It is estimated to grow to about 8,5 billion until 2030.Created by: KYRTAPSdemography facts » Which country is not a neighbour of Russia?Uzbekistan. Russia's neighbours are: Norway, Finland, Estonia, Latvia, Belarus, Ukraine, Georgia, Azerbaijan, Kazakhstan, China, Mongolia, North Korea, Lithuania and Poland.Created by: brombiarz19Russia facts » What country did Catherine the Great rule?Russia. Catherine the Second, also called Catherine the Great, was the most renowned and the longest-ruling female leader of Russia, reigning from 1762 until her death in 1796 at the age of 67, expanding much of Russia's borders.Created by: Roy Zhuwomen facts » Which State has caused the most civilian deaths around the world after 9/11?United States. A study reveals that U.S. military forces were directly responsible for about 10 to 15 million deaths during the Korean and Vietnam Wars and the two Iraq Wars.The American public probably is not aware of these numbers and knows even less about the proxy wars for which the United States is also responsible. In the latter wars there were between nine and 14 million deaths in Afghanistan, Angola, Democratic Republic of the Congo, East Timor, Guatemala, Indonesia, Pakistan and Sudan. Created by: Rafehmilitary facts » What is the world's most densely populated country?Monaco is far the world's most densely populated country with a population of just 32,410 per 2 cubic kilometers. Singapore is the next most populated mostly because of tourists, but only has about half of Monaco's population per sq. kilometer.Created by: yoshchimcountries facts » What is the smartest animal on the World?Human. The smartest animal is of course human.Created by: lukasz Polandcuriosities facts » Which country has the least population density?Mongolia. The average population density in Mongolia is 1.7 persons / km2. If Greenland was a sovereign state (belongs to Denmark) would have a score of 0.026.Created by: AdolsMongolia facts » Play geography quiz and see all the questions.