Option D is correct because in the above three options they are earning money and contributing to their own encome as well as national encome but in option D anyone is not getting any money they are farming for their own consumption.
Hydrochloric acid contributes to protein digestion by supplying H+ which activates pepsinogen, the precursor to pepsin. Pepsinogen is secreted by chief cells in the gastric glands of the body and antrum of the stomach.
Let the angles are 2x and 3x. sum of interior angles on some side of a transversal intersecting 2 parallel lines =180 degree 2x + 3x = 180 degree 5x = 180 degree x = 180/5 = 36 degree Therefore , largest angle = 3x = 3× 36 = 108 degree
Cell was discovered by Robert Hooke in 1665. He used a cork to see cell where he discovered that cork is made up of small room like or compartments make honeycomb structure. He used Latin word cellular which mean smal room.