Answer:
Coke
Explanation:
A solid fuel formed by heating coal in the absence of air is coke. Coke is black colored, tough porous substance. It is pure carbon.
Answer:
Carbon 12 and 13 are carbon isotopes, meaning that they have additional neutrons:
Carbon 12 has exactly 6 protons and 6 neutrons ( hence the 12 )
Carbon 13 has 6 protons and 7 neutrons ( hence the 13 )
They differ in the number of neutrons in the nucleus.
Names:
carbon-13, C-13
carbon-12, C-12
Geothermal energy is your answer :)
The Answer would be C. Without plants in the ecosystem, it could not feed. Plants are mainly the only producers that feed 3rd level consumers which feed 2nd level consumers which feed 1st level consumers.
