VIETUITOARELE DIN PESTERI AU CORPUL LIPSIT DE CULOARE?

but there is no

i guess you forgot putting it.

blue stars have the highest surface temp

stellar distances are usually expressed in light-years

the measure of a star's brightness is called magnitude

hope this !

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.

not always but somethings can be reproduced in a laboratory.