Question 17 of 21 Read the following sentence:
These moments of peace are ephemeral and will last only
until the next crisis occurs.
What is the most likely meaning of ephemeral" as it is used in this sentence?
A. Convenient
B. Short-lived
C. Exciting
D. Tiny
SUBMIT

(1) fire extended humans’ geographical boundaries by allowing them to travel into regions that were previously too cold to explore. (2) it also kept predators away, allowing early humans to sleep securely. (3) fire, in fact, has been a significant factor in human development and progress in many ways. (4) other obvious benefits of fire are its uses in cooking and in hunting. (5) probably even more important, however, is that learning to control fire allowed people to change the very rhythm of their lives. (6) before fire, the human daily cycle coincided with the rising and setting of the sun. (7) with fire, though, humans gained time to think and talk about the day’s events and to prepare strategies for coping with tomorrow. the sentence that expresses the main idea is: (type the number of the sentence. then click “go.”)

2. page 1: schlosser describes "just another gorgeous rocky mountain vista. and yet cheyenne mountain is hardly pristine." why do you think schlosser describes the beautiful cheyenne mountain scene in detail before describing the military installation that lies inside?

Which statements describe the creek who migrated to florida in the 1700s? select all that apply. they kept the creek name and identity. they became known as the seminole. they established more than thirty towns in florida. they became isolated from the creeks in the north. they took control of a number of white settlements.