Question

Food security is among one of the key priority areas for many nations worldwide. Significant climate change resulting from global warming such as erratic weather patterns, prolonged draught and flooding present tremendous challenges to traditional farming. While conventional farming methods have sustained mankind since eons ago, these methods increasingly struggle to feed the burgeoning world population. Many uncertain factors faced by conventional methods include unpredictable weather or climate, rising material and labour costs, pestilence and disease as well as competition of land and water resources with the current population. Overfishing, waste plastic contamination, water pollution and dense aquaculture have led to dwindling supply and potentially contaminated seafood. High demand for poultry also resulted in the rising cost of feed and dubious supplements to enhance animal growth. Among the negative consequences include unequal food distribution (hunger or malnourishment versus food spoilage or waste at different locations), air and water contamination, extinction of wildlife, increased consumption of resources (water, land) and potentially, rise in overall food prices with shortage of food supply.

Select and briefly analyze two (2) challenges for a nation to maintain food security. Subsequently, design a control system that can help to address these challenges of food security. You are recommended to accomplish this task by fulfilling the following: (a) Illustrate the control system via a sketch. (b) Justify the selection of the major components of the control system (c) Explain the working principle of the control system.

Answer 1

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