50 points! pls help must be submitted 2day

Why is it important that fibrin is insoluble in water?

Which of these is most likely to happen if parallax measurements of star distances are taken after a gap of six months? the results would be accurate the results would be inconsistent the results would not be valid the results would not be repeated

Other than earth, is also known to have magnetic pole reversal? a: venus b: mars c: earths moon d: the sun