Please solve my question i will mark u as brilliant

Given below are a few activities carried out by agricultural farming.

1. Adding fertilizer or manure to the soil.

2. Removing the husk to feed cattle.

3. Removing weeds from the field

Which of the above helps to increase the amount of nutrients available to the crop plant?

A) Only 1 b) Only1 and 2

c) Only 1 and 3 d) All: 1, 2. And 3

Mar m firs

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.