Why does sugar not move down the stem?

In the practice of science, this type of reasoning is used to develop explanations.

Which was most likely an effect on society that resulted from improvements in blood handling during world war i and world war ii?

Suppose you use three different scale to weigh a bag of oranges. one scale says the nag weighs 2.1 lb, and third says it weighs 2.1 lb. the actual weight of the bag of oranges is 2.153 lb. which of the following best decribes these results?