Which of the following best describes a result of the Opium War on China?,, O A. All of the above.
B. British victory led to European spheres of influence in China.
O C. Chinese isolation increased as the Qing Dynasty cut diplomatic ties with
D. Britain ended the importation of opium into China.

all choices are correct

the main reason that the constitution did not proclaim all men to be free and equal is because of the issue of slavery.

the causes of the dust bowls were severe droughts,   lands became dry and hard, temperature was higher than usual, hot and dry conditions killed crops, high winds. because of those factors, the winds kicked up dry soil and created clouds of dust.