Absolute dating can be determined by tree ring patterns.
<span>Dendrochronology or </span>tree-ring<span> <span>dating, is the scientific method of dating
based on the analysis of patterns of </span></span>tree rings, also
known as growth rings
The correct answer between all the choices given is the
first choice or letter A. I am hoping that this answer has satisfied your query
and it will be able to help you in your endeavor, and if you would like, feel
free to ask another question.
B
Area B of the graph shows the activation energy required if an enzyme was not present
Explanation:
Reactions with high activation energy cannot occur spontaneously. Enzymes are responsible for lowering this activation energy and enabling reactions to occur at a faster pace than natural. An example is carbonic anhydrase enzyme that enables increased rates of carbon dioxide dissolving in and out of blood plasma.
Enzymes distort the bond of reactants such that they become unstable ( this raises the reactants Gibbs free energy). The bonds therefore break and rearrange to form the products of lower and stable energy states.
Learn More:
For more on activation energy check out;
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Horned owls, red-tailed hawks and golden eagles
There aren't enough oxygen molecules in the air are higher altitudes
Im not sure but B or c. Im sorry