Valorile minima si maxima ale rezultantei a doua farte concurente sunt Fmin=1N respectiv Fmax=7N Ce valoare are rezultanta cand unghiul dintre directiile este a=90 grade

It should be d if not then c

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.