When we experience higher than normal low tides and lower than normal high tides we are experiencing?

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 many electrons does silver have to give up in order to achieve a sido noble gas electron configuration?

Explain how the integumentary system plays a crucial role in the ability to maintain homeoestasis