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

Read the passage below. which of these statements describes the problem with including this passage as part of an explanatory essay? passage: the neolithic revolution changed everything for humans. before the n. r., you couldn't even plant food. i know you want to hear more, don't even deny it! o a. the tone is too dull and does not include a hook to keep the reader interested. o b. the tone is too objective and does not show the author's opinion. o c. the tone is too transitional and does not stay focused on one topic. o d. the tone is too informal and does not use appropriate vocabulary. surmit

How did the geography of the arabian peninsula affect its religious and cultural diversity?

How have the united states influenced other nations? describe the impact that the u. s. has had on other countries.