Answer:
z,w,y,x
Explanation:
prophase,metaphase,anaphase,telophase
In a water molecule (H2O), the oxygen nucleus with +8 charges attracts electrons better than the hydrogen nucleus with its +1 charge. ... The hydrogen atoms are not only covalently attached to their oxygen atoms but also attracted towards other nearby oxygen atoms. This attraction is the basis of the 'hydrogen' bonds.
The answer is : All boats at all hours. Maintaining a proper lookout using human sight and hearing applies to All boats at all hours, specially at extreme weather conditions. They should keep up the watch at all times.
