Answer:
B: The number of neutrons
Explanation:
The difference is how many neutrons each has. Carbon-13 has 7 neutrons and C-14 has 8 neutrons.
It has 15 different known isotopes, including carbon-13 and carbon-14. Carbon-13 makes up about 1% of all carbon atoms on Earth, while carbon-14 is used in radiocarbon dating because it decays into nitrogen-14 with a half-life of 5730 years.
It's B
d cellular respiration
Extreme pressure and cold climate.
