Plants and trees absorb the carbon and make oxygen with it.
Answer:
a. They must be present in a large geographic area.
Explanation:
Index fossils can be used to determine the age of a rock strata with great precision, but they must be scattered over a large geographic area to be able to be used reliable for this type of measurement. Index fossils typically indicate a certain type of paleoenvironment belonging to a very specific prehistoric period and their formation coincides with the age of the rock layer.
Answer:
<em>Brain</em><em>.</em><em> </em>
Explanation:
<em>life</em><em> </em><em>is</em><em> </em><em>in</em><em> </em><em>the</em><em> </em><em>brain </em>
Carbon comes from stones, plastics, and other inorganic items.
Explanation:
Carbon belongs to the fourth group on the periodic table with an atomic number of 6.
It is an important compound having three allotropic forms which are graphite, diamond and amorphous carbon.
Carbon exists mostly in solid forms and reacts with other atoms in combined state.
- Carbon is found in stone for example limestone and dolomite.
- Carbon makes up plastic because they are derived from hydrocarbons.
- Carbon also exists in other inorganic forms like diamond and graphite.
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