3. Some areas in Africa suffer from lack of rain, _______ and having no opportunity to grow food can lead to _______, sickness and death.

The correct answers are 'droughts' and 'famine', respectively. A lack of rain leading to an inability to grow food is the definition of drought, which causes famine. The completed sentence would be: 'Some areas in Africa suffer from lack of rain, droughts, and having no opportunity to grow food can lead to famine, sickness, and death.'