<span>1. Count Sergei Lvovich Levitsky invented the bellows camera. It is the oldest type of camera, resembling an accordion - you must have seen it in older movies. 2. The substance that the first photohraph was made from was bitumen. Bitumen is the material that asphalt in road construction is made of, but it served its purpose as the material for the first photograph as well. 3. The first commercially available digital camera was Kodak DCS 100, released in 1991, with a resolution of 1.3 megapixels. At the time, this was a cutting-edge technology, although, of course, nowadays far better cameras can be bought.</span>
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Explanation:
I don't care about the Brainliest (although it would be nice). Laughter is the best medicine.
If you comma is not there then is the meaning any different?
I think it is because you are not giving your audience a moment to think what's coming. You have to point your audience in the direction you want them to go.
Sorry I misunderstood. The electron has a minus charge. The proton has a plus charge. The neutron has no charge at all (neither plus nor minus). It's a chemistry joke.
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