Answer: a) true
Explanation: The fluid inside the egg helps in the survival of embryo and maintain fluid environment.
Because the hydrogen will also be combusted in the reactions, so in this case the answer will be:
CH4+2O2-CO2+2H2O
Let the Total Number of Nests the Group found in the Season be : N
Given : 40% of the Total Nests the Group found in the Season = 28
The Total Number of Nests the Group found during that Season : 70
The answer would probably be China or the Us