Plz finish question asap worth 25 pts
the is found in the top part of the and it absorbs much of the suns uv radiation

Two friends at different locations want to communicate with each other by sending low energy signals. which of the following methods can they use to communicate? a) produce x-rays using colliding electrons and send them to radios, which capture sound b) send messages using infrared radiation, which travel in the form of waves c) send radio waves through intervening media like radio and television d) produce sound waves using microwaves from heated objects

How do you convert 4 mmol of bromobenzene to ml?

Which material burns faster? metal aluminum