Question

शरीर के निर्माण एवं विद्युत सहायक है
1) विटामिन
2) वसा
3) प्रोटीन
4) कार्बन डाइऑक्साइड ​

Answer 1

Chemistry is the scientific study of the properties and behavior of matter. It is a natural science that covers the elements that make up matter to the compounds composed of atoms, molecules and ions