He is aware of that fire place side desires gasoline and oxygen. Brian realizes that he desires to blow at the fire.
What do you mean by oxygen?
Oxygen is the chemical detail with the symbol O and atomic number 8. It is a member of the chalcogen group the periodic table, a highly reactive nonmetal, and an oxidizing agent that with no trouble forms oxides with maximum factors in addition to with other compounds. Oxygen is Earth's maximum ample detail, and after hydrogen and helium, it's far the third-maximum ample detail with inside the universe. At trendy temperature and pressure, atoms of the detail bind to shape dioxygen, a drab and odorless diatomic fueloline with the formula O. Diatomic oxygen fueloline presently constitutes 20.95% of the Earth's atmosphere, aleven though this has modified considerably over lengthy intervals of time. Oxygen makes up nearly 1/2 of of the Earth's crust within side the shape of oxides.
Many principal lessons of natural molecules in residing organisms comprise oxygen atoms, such as proteins, nucleic acids, carbohydrates, and fats, as do the principal constituent inorganic compounds of animal shells, teeth, and bone.
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Answer:
the branch of science concerned with the chemical and physicochemical processes and substances that occur within living organisms.
Answer:
Are volcanic landscapes useful for humans? Can human beings get any benefit from them? Justify your answer.
Explanation:
Volcanoes can provide people with many benefits such as: volcanic rock and ash provide fertile land which results in a higher crop yield for farmers. tourists are attracted to the volcano, which increases money to the local economy. ... minerals are contained in lava, eg diamonds - these can be mined to make money.
