Frequency is the term that describes the number of waves passing a point during a certain period of time, frequency is also measured in Hz (hertz).
I’m pretty sure the C molecules are carbon dioxide? And the O molecules are Oxygen? yeah.. I’m pretty sure
Answer:
can you expressed your feeling
Explanation:
Gravity , Explosion
<u>Explanation:</u>
Nebulae are made of dust and gases—mostly hydrogen and helium. The dust and gases in a nebula are very spread out, but gravity can slowly begin to pull together clumps of dust and gas. As these clumps get bigger and bigger, their gravity gets stronger and stronger.
Eventually, the clump of dust and gas gets so big that it collapses from its own gravity. The collapse causes the material at the center of the cloud to heat up-and this hot core is the beginning of a star.
