Answer:
By measuring the quantity of unstable atoms left in a fossil and comparing it to the quantity of stable daughter atoms in the fossil , scientists can estimate the amount of time that has passed since that fossil formed.
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At first you have to write the variables out which are

now you have to combine like terms


now you add these two variables and end up with answer of
Geography is such a broad and all-encompassing subject, there is no one definition that applies to it.
What is Geography?
The science of geography examines the Earth and the natural and human forces that have shaped it.
The study of places and the interactions between people and their environs is known as geography. Geographers study the Earth's surface's physical characteristics, as well as the distribution of human communities there.
Hence, the significance of the Geography is aforementioned.
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