You must know that the main site of photosynthesis, is Chloroplast which is present in the leaf. Chloroplast contains a green pigment (appears green colour) called chlorophyll.

Bile is dark green or a yellowish-brown fluid which is produced by the liver and comes to the small intestine through hepato-pancreatic duct.

Separation of components of a mixture is done to obtain purity of a substance and remove undesirable components.

According to Newton’s second law of motion. Force = Rate of change in momentum F = m(v-u)/t = 5 (12 – 8)/4 = 5 N