Im So CoNfUsEd Which factor causes gas and dust to pull together during the first stage of star formation? A. density
B. gravity
C. heat
D. pressure
I JUST LEARNED THIS BUT I DONT REMEMBER!!

B. Gravity

Explanation:

I got this correct on Edg 2020. Also, gravity has the inherit property to pull any objects with mass together. This means gravity is the sole reason as to why the gas and dust pull together when forming stars.

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.