Compared to earth, the sun is dense. a. less b. more c. equally

answer; i believe the correct answer to the above question is ( friction)

c: warm water flows from the western tropical pacific toward south america. that should be the right answer! hope it .

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.