Small farms are classified as farms with annual sales of less than
a. $50,000
b. $250,000
c. $450,000
d. $1,000,000

Fossils of glossopteris, an extinct fern, were discovered on which continents to support the theory of continental drift? check all that apply.

Which two following best identify the central themes of this speech in the passage the man in the arena

Which planets are likely to have the strongest gravitational fields?