What is the justification of the progressive taxation method?

The tax which imposes a lower tax rate on the low-income earners while those with higher income are taxed more is known as the Progressive tax system. Hence this taxation is based on the people's ability to pay tax. A larger percentage of tax is taken from high-income earners. People with low incomes are taxed less because it is considered that these people spend most of their income on basic necessities and maintaining standard of living.

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.

i don't know. if i were you, i would search it up online : d