Question in picture #25 answer with explanation and you’ll get brain list

Use the image below to answer the following questions there are three types of heat transfer occurring in the picture below. write a sentence about where each is occurring. (total three complete sentences in your own words.) on a very cold day, if you place your hand towards the bottom of a window, you can feel the convection of cold air as the cold, dense air sinks. try it out. did you feel the convection? it's a marshmallow on a metal stick over fire

What’s the scientific notation for the number 6,840,000,000

Can you me with this i really appreciate it