The shaft is supported at its ends by two bearings a and b and is subjected to the forces applied to the pulleys fixed to the shaft. the 400-n forces act in the z- direction and the 200-n and 80-n forces at in the positive y direction. the journal bearings at a and b exert only y and z components of force on the shaft. determine the normal force at d in the x-direction

Then the answer would be d then

Honestly "global warming" may be a slight possiblity, however they called it "climate change" because its not real, in fact we had one of our coldest days here not too long ago, and the "issues" with this subject is a blindfold for actual problems.

The answer is water molecules are split.cellular respiration and photosynthesis are complement  reactions to each other. these are reverse reactions. in cellular respiration glucose and oxygen yield water and carbon dioxide. so, when respiration begins,  glucose molecules are split. in the opposite reaction - in photosynthesis, carbon dioxide and water yield glucose and oxygen. thus,  when respiration begins, water molecules are split.