Apossible explanation to a problem is a(n)
problem
observation
hypothesis
experiment

Astudent observes a star from two positions of earth in its orbit, in summer and winter, and measures the change in the position of the star. which of these can be best calculated by this method?

Compare the depth of field when focusing with low power and high power. which power has the greater depth of field?

Rue or false siblings look simila rbecause they each have some traits of their parents.