Plez i beg you on number five only question: which image shows the formation of sleet? i will be putting the answer choices up above as a picture.

i would have to say b i'm not positive hope this helps

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.