Organic materials less than "50,000 years" old are the type of materials that scientists would date with the carbon-14 method.
Are sponges jointed not jointed or nothing
Sponge are are nothing
Shells are considered biotic because they come from living things. Biotic describes something living or use to be living such as plants and animals. So shells are considered biotic because they come from a living organism.
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Hope that helped:)
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<span>Answer: Use Format Painter in Microsoft Office or in other such office automation softwares.
Explanation: Since several cells have to be formatted with the same set of style, it is more easier if we do the formatting in one cell and then use the format painter tool to have the same formatting copy-pasting to all the desired cells.</span>