What part of a microwave oven protects humans against radiation? plastic outer covering
magnetrons
metal shields
glass doors

Write a net ionic equation to show that hydrofluoric acid, behaves as an acid in water.

This active feature of earth's crust in building mountain ranges as well as islands. this feature is a a) cavern. b) earthquake. c) mountain. d) volcano.

Define dew point. i am writing this part to be able to ask the question