During which season in the northern hemisphere is the earth at its closest distance to the sun? a. winter b. spring c. summer d. autumn

Wind energy is plentiful in regions with vast open spaces it is a non polluting renewable resource what could be an economic factor that makes the use of this resource less feasible then non renewable resource even in such regions

'which of these statements about the scientific method is not true? all experiments must follow the same number of steps in the procedure. experiments may be repeated several times. some unexpected results can be beneficial. experimental results may or may not support the hypothesis.

Construct at least two possible hypotheses for the student’s experiment.