Question

what is one gadget or material item that you can't live without? why?write about oxygen​

Answer 1

Answer:

no we can't live without oxygen, because we need air to breathe

Explanation:

I don't know that answer

Answer 2

Smoke Detector. Invented in the 1960s by Duane Pearsall, the smoke detector has proven over and over again to be a life-saving gadget, and some people would literally not be alive without it.