Approximately how much of earth's surface is covered by water? (1 point)

What was on result of the potato famine

The world wars of the twentieth century immediately led to a. the establishment of a communist bloc in eastern europe b. the urbanization of europe’s societies c. an emphasis on humanism d. an emphasis on ties to greek and roman societies select the best answer from the choices provided. a b c d

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