In the movie Schindler's List name someone who is a perpetrator a collaborator and a bystander

Aging populations can be a problem for developed countries because a) there are fewer younger workers coming into the workforce. b) most older workers demand top-level pay and full benefits. c) many older people are skilled in manufacturing, not technology. d) younger workers cannot find jobs when older people work longer.

Which of the following is not true of american cowboys?

When top-roping is used, how long should the rope be in order to protect the climber throughout the climb?