Developing scientific knowledge
how can a scientist ensure that his or her data are reliable?
by making a single observation
by repeating trials during an experiment
by recording values without units
by keeping the results private

The correct answer option is B. by repeating trials during an experiment

Explanation:

We are to determine whether which one is an appropriate answer option for the method by which a scientist can ensure that his or her data are reliable.

Scientists repeat the experiments over and over and keep recording the values. Since an experiment cannot go wrong every time it is performed so they repeat trials to make sure that their data is reliable.

the civil war was a fulfillment and completion of the constitution, not a revolution against it. changes in culture and society surely affected political life. lincoln hoped to bring the north and south together after the war by healing the nationand making people lose their resentment.

hope this you out just took thus test a min go and mad a 100

b toward the volcano.landward. the landward side of something is the side nearest to the land or facing the land, rather than the sea.