17a. a move toward longer wavelengths of the spectral lines emiotted by a clelestial object that is caused by the object moving away from the earth. 3 and 5 letterrs. - e - (s - i - - )
8d. seeking to intimidate by an aggressive display of military poer. 5 and 8 letters. S - b - e. ( a - - - i - g )
5d chemical decomposition into which a compound is split into other compounds by reacting with water 10letters - y - r - l - s - s
thanks in advance