Please help me with number 4 please I really need help

Residents of moldova are mainly a. russian b. ukrainian c. serbian d. romanian the answer is d. romanian

Mosses, lichens and shrubs can be found where in russia? a.grasslands b.mountain regions c.coastal plains d.siberian tundra

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