In order to form methane, one carbon atom shares electrons with four hydrogen atoms. which of these best describes why methane would form in nature?
a)
the ionic bonds formed to stabilize the molecule.
b)
the atoms become less stable by sharing electrons.
c)
the covalent bonds formed make each atom more stable.
eliminate
d)
methane is only formed in a lab and cannot be made naturally.

Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.