Why did congress pass the chinese exclusion act?

a. to reduce the power of the qing dynasty
b. in response to the boxer rebellion
c. to limit trade with china
d. to protect american workers

the following best describes postwar era writers in their works:

many writers,authors,novelists,poets concentrated more on social art and social writing and stayed away from political writings.

i think the answer is b.

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