<span>a thickened and hardened part of the skin or soft tissue, especially in an area that has been subjected to friction.</span>
Answer:
is it a question or a joke. LOL
Explanation:
Probably something like getting caught by your parents the minute you take your phone while they weren't seeing you when you studying until then.
Or say getting your little toe hit on the bed corner every single time.
:):);)
Carbon dioxide (chemical formula CO2) is a colorless and odorless gas that is vital to life on Earth. This naturally occurring chemical compound is made up of a carbon atom contently double bonded to two oxygen atoms. Carbon dioxide exists in Earth's atmosphere as a trace gas at a concentration of about 0.04 percent (400 ppm) by volume.Natural sources include volcanoes, hot springs and geysers, and it is freed from carbonate rocks by dissolution in water and acids. Because carbon dioxide is soluble in water, it occurs naturally in groundwater, rivers and lakes, in ice caps and glaciers and also in seawater. It is present in deposits of petroleum and natural gas.
spent a few minutes on this
I am pretty sure its called the "Biological Soup theory"... I hope I helped!
