Which idea do these lines convey?
a. thoughts can have negative effects.
b. having a good night’s rest is important.
c. a motivated person has particular habits.
d. emotions have positive effects.

The difference between the present reservoir, with its silent sterile shores and debris-choked side canyons, and the original glen canyon, is the difference between death and life. glen canyon was alive. lake powell is a graveyard. which word best contributes to the author’s sad tone?