1. The foods we eat, the air we breathe, cleaning chemicals, our emotions and literally every object that we can see or touch, Love, jealousy, infatuation and all share in chemistry. For all living things to function and survived their bodies perform various chemical processes.

  2. Dimension of angle is [M0L0T0], So, the A and C have dimension [L]. Since, x is a distance and t is time, B and D have dimensions [L-1] and [T-1] . Their ratio has dimension[L-1 T].

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