Answer:
Transport of sediments causes them to become rounder as their irregular edges are removed both by abrasion and corrosion. Beach sand becomes highly rounded due to its endless rolling and bouncing in the surf.
I think cities but is this about country
Answer:
B. China has a large population , so its GDP per person is only modest
Explanation:
Despite being one of the countries with highest GDP's in the world, and experiencing enormous economic development in the past few decades, China's population is still not having the same level of financial power as the other countries with high GDP's. The main reason for this is that China has enormous population, being the most populated country in the world with over 1.3 billion people. Because of the enormous population, when the money are redistributed to everyone, it turns out that China is still at a level of a developing country. Not to make mistake, China's population has much higher standard of living than what it had few decades ago, so the people live much better, but the country still has a long way to go to reach the GDP's per capita that the other countries have.
