Why was crossing the Great Plains time consuming and dangerous? A. The environment was harsh and settlers could be attacked by Native Americans along
the way
B. Fires often broke out thanks to the thousands of square miles of dry grasses, so
settler's campfires often ended up out-of-control
C. Most of the travel happened in the winter, when farmers were between growing
seasons, and blizzards caused wagons to become frozen
D. Unmarried women had to be heavily protected from other settlers, resulting in a slow
pace

aug 15, 2012 - although van leeuwenhoek was not the inventor of the microscope, he advanced it more he loved to grind and focus a new lens in order to see the unseen world. most of leeuwenhoek's microscopes were silver. in a simple but significant experiment (1668), he demonstrated that worms found on

1.d 2.a c.!

the two things that develop a strong social foundation are: a. separation of church and states e. education received attention separation of church and states separate the illogical  argument that came from religious beliefs to a fact based belief. while education will make us remember the past to avoid the repeat of our mistakes.