"To accommodate for lack of dependable rainfall" would be the best option as to why the ancient Chinese organized large groups of people to build and maintain irrigation systems, since when rainfall would not come for long periods of time, the crops would likely die without proper irrigation.
Answer:
The answer is C.
the decline of tensions between the U.S. and the Soviet Union
Explanation:
Statistically, Less developed countries typically spend over half of their household income on food. In 2016 a survey showed that out of nine less developed countries observed, four were in Africa, four in Asia, and one in South America, below is the outcome of the survey.
<u>AFRICA</u>
Nigeria 56.4%.
Kenya 46.7%.
Cameroon 45.6%.
Algeria 42.5%.
<u>ASIA</u>
Kazakhstan 43.0%.
the Philippines 41.9%.
Pakistan 40.9%.
Azerbaijan 40.1%.
Guatemala is the only country from South American to appear on the list and families here spend about 40.6% of its income on food.
However, with the crisis in Zimbabwe, Somalia, Sudan, and other less developed countries facing Economic, financial and food crisis, it is estimated that as at January 2019, they spend almost 87% of their household income on food.
