Directions: Read the text below and answer the question according to it.
(Adapted from http://www.paypervids.com/food-shortage-causes-effects-solutions/Acesso em:14 fev 2017)
Glossary:
1. unrest – disagreement or fighting between different groups of people
2. soaring – something that increases rapidly above the usual level
3. yield – to supply or produce something such as profit or an amount or food
4. overgrazing – excessive use of land where animals feed on grass
The first paragraph states that crop failure, overpopulation and poor government policies are the main cause of food scarcity in most countries. Such problems may represent respectively