Why is gravity an example of a scientific law

The metal wire in an incandescent lightbulb glows when the light is switched on and stops glowing when it is switched off. this simple process iswhich kind of a change? a.a physical changeb. a chemical changec. a nuclear changed. an ionic change

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant

The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is as it changes into other forms of energy.