Question

Hydrogen was discovered by the English physicist Henry Cavendish in 1766. Scientists had been producing hydrogen for years before it was recognized as an element. Written records indicate that Robert Boyle produced hydrogen gas as early as 1671 while experimenting with iron and acids

Answer 1

Answer:

There are three main ways that water on land turns into vapor: Evaporation - This is the main process by which water goes from the ground to vapor in the atmosphere. ... Sublimation - This is when water moves directly to vapor from ice or snow without ever melting into water

Answer 2

Answer:

I don't know I m in class 8