An explorer who was preparing for a long, dangerous voyage during the age of exploration would worry most about

select the best answer from the choices provided.
good sailors for the ship
a noble's funding for the journey
a new ship design from portugal
the pope's approval of the treaty of tordesillas

What was one major cause of worldwide conflict during the first decade of the 21st century?

Some organisms have a large geographic range. for example, the norway rat lives on every continent except antarctica. a population of norway rats is the number of rats in one particular area. do you think it’s scientifically possible for a population of norway rats in north america to carry different genetic mutations than a population of norway rats in africa? do you think it’s possible that they carry some of the same mutations? what types of information can scientists learn by studying the genomes of these two populations of rats?

What two things did washington warn about in his farewell address?