Rohan went to his Grandfather's village with the family. His grandfather took him to their fields. There, Rohan saw that his uncle is turning and loosening the soil. Rohan asked from his grandfather that what is this ? Why are they doing ? His grandfather said that it is the first step of cultivation of crops. Select the appropriate option to justify the importance of the first step

it supports cell theory.it states that all living cells are made from cells

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.

compost can be added to topsoil as a:

pesticide

it would be heredity