15. Which of the following best supports this claim: Drilling for oil is bad for the environment.
Saudi Arabia and Canada have some of the largest oil reserves in the world.
Ο Ο
Oil is measured in barrels, which is equivalent to 42 gallons or 159 liters.
Oil spills kill hundreds of thousands of animals and cause damage that can lasts for decades.
Oil is a fossil fuel that can be refined into products such as gasoline which is essential for many motor vehicles.

(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.”)

Which excerpt from leo tolstoy's the death of ivan ilyich reflects the author's opinion that the members of the medical profession don't really care about their patients?

Which of the following statements is true?