An educated guess to something you should test over and over
Answer:
Electricity is a word that can describe the flow of electrons between atoms. The movement of electrons between atoms is called electrical current.
While gravitational pull pulls us down the opposing force pusshes us upward and cancels each other out
2 near the middle
between ultraviolet and infared
Answer:
As the main sequence star glows, hydrogen in its core is converted into helium by nuclear fusion. When the hydrogen supply in the core begins to run out, and the star is no longer generating heat by nuclear fusion, the core becomes unstable and contracts
Explanation: