what is the main reason free blacks had trouble blending into american society in the north?
a. lack of education
b. skin color
c. european immigrants
d. legal system

during the ming dynasty

sonar maybe? ? i dont know the choices

valentina tereshkova

soviet cosmonaut valentina tereshkova became the first woman to fly to space when she launched on the vostok 6 mission june 16, 1963. valentina tereshkova was the first woman to go into space. in 1963, she spent almost three days in space and orbited earth 48 times in her space capsule, vostok 6.jan 22, 2018

the anwser is a) to prevent military conflict