Large-scale environmental catastrophes . A. Result from human activities b. Have a negative impact on ecosystems c. Affect a variety of environmental factors d. All of the above Please select the best answer from the choices provided A B C D.

Which of the following statements most accurately describes the requirement for the documentation of minors’ assent to participate in research? parents must approve written documentation. documentation is required unless waived by an irb. to protect minors documentation is always required. federal regulations do not require the documentation of minors’ assent.

In what ways did the compromise of 1850 and the kansas-nebraska act of 1854 differ from the missouri compromise? both compromises used the established 36°30′ parallel to determine if territories would become free or slave states. both compromises used the mason-dixon line to determine if the territories would become free or slave states. both compromises let territories use popular sovereignty to determine if they would become free or slave states. both compromises only granted congress the power to determine if territories would become free or slave states.

How long was it from the time african american men were given the right to vote until women were given the right to vote?