【学术阅读】#55
Question 4 of 5
Why does the author mention “political instability or natural disasters”?

A.

To identify situations in which dependence on global trade can have negative consequences

B.

To provide examples of factors that have an insignificant influence on agricultural economics

C.

To emphasize the importance of organic farming

D.

To demonstrate how technological advancements can solve problems

正确答案:A

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译文

Agricultural Economics

Agricultural economics has undergone significant changes, driven by advancements in technology and shifts in consumer demand. Precision farming utilizes satellite imagery to [#highlight1]enhance[/highlight1] crop yields by analyzing soil and weather conditions. This allows farmers to make informed decisions about planting, watering, harvesting, which in turn increase efficiency and reduce waste. 

Another development is the rise of organic farming, which responds to consumer preference for sustainable products. Organic farming avoids synthetic pesticides and fertilizers, focusing on crop rotation, composting, and biological pest control. This practice has environmental benefits and creates niche markets for farmers. 

Global trade also impacts agricultural economics. Nations depend on importing and exporting food to meet domestic needs and take advantage of international prices. However, this interdependency can lead to economic vulnerability when global supply chains are disrupted by [#highlight4]political instability or natural disasters[/highlight4]. 

Innovations and global dynamics can also pose other challenges. Precision farming requires significant investment in technology, which can be prohibitive for small - scale farmers. Organic farming often yields lower outputs than conventional methods, complicating the balance between sustainability and food security. Additionally, reliance on global trade exposes countries to fluctuations in international markets, necessitating robust economic policies to manage these risks.