Answer:
O B. It represents the time it takes for half of the material to decay to a
daughter element.
During photosynthesis, plants take the extra carbon from the air, make it into oxygen and then release the oxygen back into the air for us to breathe. The process of photosynthesis can help reduce global warming by removing the extra carbon in the air which allow the air levels in the atmosphere to be more balanced .
The turnover number (number of molecules the enzyme can act on per second) for lactase dehydrogenase is 1,000 lactate molecules per second.
In one minute, this becomes:
(1,000 molecules / second) * (60 seconds / minute)
= 60,000 molecules / minute
In 21 minutes, this will be:
60,000 * 21
= 1.26 x 10⁶ molecules of lactate
CaCO₃ → CaCl₂
Ca = 40, C = 12, O = 16, Cl = 35.5
100 →111
3 → x
x = 3.33g
