Which of the following is not a shortcoming of current scientific polls? a. they have difficulty measuring the relevance of opinions to the people who hold them. b. they cannot accurately measure the intensity of opinions. c. they have difficulty measuring the stability of opinions. d. they cannot accurately measure political preferences.

in 1803 the louisiana purchase took place, doubling the size of the country. by 1840 almost 7 million americans had migrated westward in hopes of securing land and being prosperous. the belief that settlers were destined to expand to the west is often referred to as manifest destiny.

explanation:

compensation; complaints

explanation:

some employers provide "severance compensation" to employees whose employment has been terminated due to no fault of the employee

mark brainliest

i dont know but i need points

missouri compromise of 1820 which prohibited slavery