Read the following passage and answer the questions from 36 to 40 :
World Distribution of Human Race
All members of a racial group, though each one of us has one head, two arms, two legs, two eyes, two ears and so on, each one presents a different appearance.
A scientific classification of races should be based on measurable physical features that are inherited from ancestors. The features considered important for classification of races include - colour of skin, stature, shape of the hend, face, rupse, eyes, type of hair, etc.
Skin Colour -Skin colour makes the most apparent difference between people belonging to different races. On the basis of skin colour, the people of the world are classified as White, Black and Yellow. White-skinned people are found in North America, black in Africa and yellow in China, Japan and Mongolia.
Stature -Stature being an easily measurable character can be used as one of the bases for classification of human population. Human population on the basis of stature is divided into the group of short, medium and tall people. Generally people in Europe and North America are tallest and Mongoloid people are the shortest.
Shape of the Head — Like stature, the shape of the head is a measurable parameter. Long headed people are found in Europe and North America, while medium to small headed people are found in Africa and Asia.
Shape of the Nose -- Width and height of nose is also an important criterion for identification of various races. People with long and narrow noses are found in European countries while the Africans are classified as people with broad noses. The Kajji of the Niger Delta in West Africa are the people with the broadest noses among the Negroes while the Swedes have the narrowest nostrils.
Shape of the Face - The facial appearance of a person is also considered an indicator of his race. The face may be long or broad. It is generally observed that the faces of the Mongoloid, Chinese and Polish people are broader while Scandinavians or the Nordic have relatively narrower faces.
Eyes -- Colour and form of eyes is an indicator of certain racial groups. People are classified on the basis of the colour of the eyes as dark-eyed, gray-eyed, or blue-eyed people. Dark-eyed people are found in Africa, Gray-eyed in Mongolia, China and Japan and Blue-eyed in North America and Europe.
Hair Form and Colour - Form and colour of hair vary from race to race. On the basis of the form the hair can be classified as straight long hair or short wooly hair and wavy hair. The Caucasoid people have wavy hair, the Negroid have wooly hair and Mongoloid have straight hair.