One noteworthy change in the economy during the 1920's was a) a stagnant stock market. b) decreased consumer confidence. c) decreased spending on discretionary goods. d) increased speculation in the stock market.

the answer was D i just had the question

the correct answer is b, "fertility rates are increasing, so populations will grow more quickly in the future."

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