Which country/countries have a green tree on their flag

The yellow river is also known as the huang he river? true or false

Plants can have a positive and negative effect on the rate of weathering

Which of the following best describes the purpose of a nation’s boundaries? a. to limit the movement of goods and people b. to make it easier for cartographers to create maps c. to make the movement of goods and people easier d. to prevent other countries from invading territory