Population (means) _______ the number of people who live in a particular area. The population of the world (does not stay)_________ the same. At the moment it _______ (is growing) at an increasing rate. ln fact, scientists (believe) that the world population will increase until 2200, and then stop growing. However, things are not the same in all parts of the world. At present in many Western industrial countries the population (is falling)___________. This (happens) ________ because families are small, and health conditions are good. In developing countries, on the other hand, the population (is rising) ____sharply. In Ghana, for example, most families (have)______several children. Many children in Ghana (are dying)_____ from illness, so it is important to have lots of children. They earn money for the family and (look after) ______their parents in old age.