Answer:
Radiometric dating is usually defined as a method that helps in calculating the age of rock depending on the presence of radioactive isotopes and its rate of decay. In order to calculate this, the half-life of the isotope element must be known. This method is commonly used by geologists.
The conditions that are needed to fulfill in order to determine the age of a granitic batholith are as follows-
- The rate at which these materials decay must be a constant
- There should be an exact amount of both the parent as well as the daughter elements.
- Since it is a batholith, so it has formed from the crystallization of magma at a certain depth. So, these granitic rocks must have remained within a closed system, right from the time of its formation.
The various methods of radiometric dating that can be used to date this granitic batholith are-
- Uranium-lead dating- It is an efficient method to date the rocks that are of about 4 to 4.5 billion years.
- Potassium-argon dating- It is also commonly used to date rocks that are about 4 billion years old.
Answer:
1,3,5 are all equal to 675
Based on the Continental drift hypothesis, it is believed that<u> B. </u><u>Continents </u><u>may </u><u>collide </u><u>in the </u><u>future</u><u>.</u>
<h3>Continental Drift Hypothesis</h3>
- Posits that continents were once part of a super continent and then broke apart.
- Posits that continents will keep moving until they collide again to form another super continent after which they will then break apart.
The hypothesis therefore posits that continents will collide at some point millions of years into the future with one such example being the Americas and Asia.
Find out more about the Continental Drift hypothesis at brainly.com/question/10665738.
I would go with number one, because that's the only option that isn't negative.
