1000 years ago, less than 4% of habitat land was used for agriculture. Today, approximately 50% is used for agriculture. What statement best explains why this large change occurred?
a. humans developed new agriculture practices which allows the expansion of agriculture.
b. Most humans live in urban areas, so rural areas are heavily developed to provide food for those densely populated urban areas.
c. The human population increased rapidly, which caused a subsequent increase in the demand for food.
d. As human population grows, more food is produced, causing soil, quality to decline, so more land is needed to grow the same amount of crops.
1 answer
c. The human population increased rapidly, which caused a subsequent increase in the demand for food.