निम्नलिखित में से किसे पृथ्वी पर सबसे हल्का ठोस पदार्थ (सबसे कम घनत्व वाला) माना जाता है?

Borosilicate glass is widely used in laboratory equipment and cooking utensils due to which of the following properties?

Inorganic, non-metallic materials possessing crystalline, polycrystalline, or mixed amorphous-crystalline behavior with distinct grain boundaries across the extended lattice are classified as: