Explain (using examples) how effective the United States efforts were to win the cold war during the 1940's and 1950's.
Your answer

i believe the answer would be 1.

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