According to the passage, how does conserving energy helps combat climate change? A
It turns off the lights automatically.

B
It reduces the need for fossil fuels.

C
It recycles old materials into new ones.

D
It releases greenhouse gasses into the air.

What are transitions between a liquid and a solid called? identify which way they are transitioning

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.

What are the chemical names of these compounds? ke: mg3n2: reset next