Answer:
The critical temperature of a substance is the temperature at and above which vapour of the substance cannot be liquefied, no matter how much pressure is applied.
2) chemical
3) chemical
4) physical
5)chemical
6)chemical
7)physical
8)physical
9)physical / chemical
100% sure
C. inorganic does not contain carbon
Answer:
the Rhyniognatha hirsti
Explanation:
at age 400 million years old
