Most of the information about Earth's interior was obtained by studying
seismic waves
meteorites
rocks of the ocean crust
rocks in deep wells

yellow fever and other tropical diseases

porter is writing economic history because he is focusing on the cost of developing vaccines.

the crusaders are identified in the painting;

c. by the red crosses on their backs

1. means it belongs to you.   (d. unalienable)

2. a time when money loses its value.   (e. inflation)

3. a meeting of people organizations for a special purpose.   (a. convetion)

4. president of constitutional convention.   (b. george washington)

5. refuse to attend the constitutional convention.   (f. rhode island)

6. it’s congress favored the big states.   (g. virginia plan)

7. it’s congress favored the small states.   (i. new jersey plan)

8. did not sign the constitution.   (f. rhode island)

9. it’s vote made the constitution legal   (c. new hampshire)

10. the introduction of the constitution.   (a. convention)