The table below shows the elements that mainly comprise each of the four layers of Earth: Elements in Layers
Layer Main Elements
Crust Oxygen, Silicon
Mantle Iron, Magnesium
Outer Core Iron, Nickel
Inner Core Iron
Which of these elements make up the layer that is 0.2 to 1.1 percent of Earth's total diameter? (7 points)

a
Oxygen and Silicon

b
Iron and Magnesium

c
Iron and Nickel

d
Magnesium and Silicon

c

Explanation:

silicon and Magnesium can be find anywhere in the soil

segmentation=endoskeleton=backbone=coelom=tissues

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.