The cretaceous-tertiary extinction, the most famous of all the big five, has been attributed to what major event that triggered the fall of the dinosaurs?

a. an asteroid hitting the earth
b. increased competition from mammals
c. rapid growth of forests on land surfaces
d. glaciation

Who is established rule by assembly and people's court with juries in athens? (a) tellus (b) aristotle (c) solon (d) leonidas

As the coach of the u.s. olympic cycling team, i can state without question that the swedish and french teams were using illegal steroids. how else could they have beaten us so badly in the last competition? the u.s. team trained much harder and was much more skilled than our opponents. we only lost because a few teams cheated.

Which item best completes the chart?