Factors that contribute to persons becoming refugees

Which of the following is not a challenge to instituting sound global environmental policies? a. most changes are inexpensive and easy to implement. b. elected leaders who support unpopular environmental issues often are not re-elected. c. economic considerations outweigh environmental ones in many societies. d. there is no way to enforce international environmental agreements.

Acharreadas is a popular mexican thing where people display varying skills of horsemanship much like what events in the united states?

In the diagram, δgef and δhef are congruent. what is the value of x?