B.There are seven continents on our planet: Africa, Asia, Antarctica, Europa, North America and South America and Oceania/Australia.

1. Asia has the biggest land area and the world's biggest population. There are some famous cities, like Delhi, Tokyo,Shanghai, Beijing.
 2. Africa has the most countries. There are 54 countries on the African continent.
 3. The United States of America, Canada, Mexico, Greenland and the Caribbean islands are in North America. It's hometo the largest Christian population in the world. Almost 80% of the people here are Christians.
 4. Antarctica is covered almost by ice. 90% of the planet's ice is on this continent.

continent 洲   population人口  Christian 天主教

【題組】40.Which is the smallest continent?
(A) Africa
(B) Australia
(C) Asia
(D) Antarctica