Which factor causes gas and dust to pull together during the first stage of star formation? density gravity heat pressure

Which of the following claims does the author support the least

Type the correct answer in the box. use numerals instead of words. fiona has a lovely flower bed in her yard. she wants to add a fence along one side of the flower bed. the fence material is sold in meters. fiona knows that her flower bed is 200 centimeters in length. how much fencing material does fiona need in meters? fiona needs meters of fencing material for her flower bed.

Blood has traveled from the heart to the toes. which describes the next step of the circulation process?