№1
1 nation
2 union
3 flat land
4 climate
5 population
6 origin
7 emblem
8 its identity
№2
1 b
2 a
3 c
№3
1 There is also a state flag, a flower, a tree, and a bird.
2 Alaska is 500 times bigger than Rhode Island.
3 More than (a) half of the states have names of American Indian origin.
4 The state with the lowest population is Alaska.
5 Each state also has a flag with colors that have a special meaning for the each state.
6 People often name new cities or towns after those where they come from.