Answer:The Characteristics of Modern Agriculture Enabled by Chemicals. The evolution of agriculture in the world's rich, developed countries has four defining eras: settled agriculture; blood, sweat and tears; mechanical; and chemical.
Explanation:
A glacier will most likely become a dune
Answer:
Option E (a and d), is the right answer.
Explanation:
Option E is the correct answer because increasing aggregate demand results in increasing income, output, and employment. In an economy, when the aggregate demand increases, the price level also goes up. Due to the rise in aggregate demand the aggregate demand curve shifts rightwards. Consequently, it shows that there will be an increase in the gross domestic product in the short run. That is why option E is correct.
-China's physical geography made farming possible but travel and communication difficult.
-geography kept early China culturally and economically isolated from the rest the world.