HELP ASAP GIVING BRAINLIEST FIVE STARS AND HEART! Answer with at least 5 sentences in your own words:
What are two properties of electromagnetic radiation?

In empty space, electromagnetic radiation will fly. Some kind of material must pass across most other forms of waves. In order to be heard, for instance, sound waves require either a gas, solid, or liquid to travel through.

an honest friend. a friend who cares about me, and wont use me. a friend that i can trust. not someone who is fake

mark this brainliest lol i need one more.

i just calculated it all out, and not including weekends, and all the different days off. as of this school year (2018-2019) students are spending 2198 hours in school this year