Both were powerful nations and they served as trading hubs in their respective regions during that time.
I think that an antonym for Food Chain is food web.
Answer:
Leaves are the site of the food making process called photosynthesis. In this process, carbon dioxide and water in the presence of chlorophyll (the green pigment) and light energy are changed into glucose which is sugar. This energy rich sugar is the source of food used by most plants.
Explanation:
