Carbon-12 has 6 neutrons and 6 protons, making it 12.
Carbon-14 has 8 neutrons and 6 protons, making it 14.
It is used to date the age of things that are very old using radioactive isotopes.
C. and the sandstone formed around the rocks which are most likely metamorphic
The immune response is the body's defense mechanism against the pathogens. The immune response of the body protects it from bacteria, viruses and multiple other disease causing organisms. The normal development of this protective immune response of the body is produced by as a result of the hormones which are produced by the thymus gland. The thymus gland produces the T-lymphocytes, which are important for a healthy immune response. The thymus gland secretes thymosin which is crucial for the development of these cells.
Hence, the answer is 'thymus gland'.
The answer is C
groundwater is contained and flows through bodies of rock and sediment called aquifers. The amount of time that groundwater remains in aquifers is called its residence time, which can vary widely, from a few days or weeks to 10 thousand years or more.
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Answer</h2>
Buffer controls the sudden change in the solution
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Explanation</h2>
Buffer prevents the sudden change in the pH. They keep the pH of the solution nearly constant. For example, in human Buffer solution helps to regulate the pH of human blood. The normal pH of the human blood is nearly 7.35 to 7.45 and a little change in this pH many leads the serious problems. Carbonic and bicarbonate buffers play a role in maintaining the acid base balance of the blood.
