Answer:
The process that Mildred used is known as Radiocarbon dating
Note: The question is incomplete. The complete question is given below:
Mildred collects a sample of fossilized plant material. She takes it back to her lab to run some tests on it. Mildred is able to measure the amount of carbon-14 in her sample and compare this to the amount of carbon-12 in it. She uses this information to calculate that the fossil is 4,500 year old. The process that Mildred used is known as _______
Radiocarbon dating
Faulting
Indexing
Superposition
Explanation:
Radiocarbon dating is a process of determining the age estimates of various objects and materials using the radioactive properties of an isotope of carbon, carbon-14.
Radiocarbon dating uses the ratio of two isotopes of carbon, carbon-12 and carbon-14 present in materials which contains carbon to determine their age.
There is a fairly constant ratio of carbon-12 and carbon-14 in living organisms. However, at death, due to the decay of carbon-14 to carbon-12, the ratio begins to change. Since the rate of decay of carbon-14 is fairly constant, a property known as half-life, the time it has taken for carbon-14 to decay to carbon-12 can be calculated. This calculated time will givee the age of the fossilised material.
Answer:
25 miles
Explanation:
<em>Average velocity is displacement divided by time interval of the displacement.</em>
<em> </em><em>so </em>
<em>Here </em><em>average </em><em>velocity </em>
<em>=</em><em> </em><em>5</em><em>0</em><em> </em><em>/</em><em>2</em><em> </em>
<em>=</em><em> </em><em>2</em><em>5</em><em> </em><em>miles </em><em> </em>
<em>Hope </em><em>it </em><em>will </em><em>help </em><em>:</em><em>)</em>
3- stay indoors
2- most likely need an umbrella
1- don’t need an umbrella
Answer:
Photochemical smog is a mixture of pollutants that are formed when nitrogen oxides and volatile organic compounds (VOCs) react to sunlight, creating a brown haze above cities.
Explanation:
The answer is:
_____________________________________
"oceanic" .
________________________________________
