What was the main impact of China's natural barriers like mountains, deserts, and an ocean? *

What is the role of buyer & seller in the marketplace

According to subpart d, research with children may be eligible for exemption when: the children will be asked to complete a surveythe research involves the use of educational teststhe children will be interviewed by the researcher.the research with children will involve participant observation with researcher interaction.

Why did separate government develop in ancient greece?