Geologists can determine the actual age of features on a planet by the radiometric dating method in which the age of the rocks is calculated by the natural decay of the radioactive isotopes of elements such as carbon.
In the radiometric dating method, the radioactive minerals in rocks are used. The radioactive isotopes, which are the chemical elements, naturally break down and decay to form a new isotope.
Each radioactive element has a unique decay rate which is known. Hence, the radioactive isotopes are crucial for the geologist to compare and identify the age of the rocks and furthermore, the planet.
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It is covered with a biological community of vegetation composed of
mainly cone-bearing needle or scale-leaved evergreen trees. It is called
"land of little sticks". The forest trees in the taiga grow as tall
as the highest latitudes of other trees in other places.
Aa is lava that forms a thick ,brittle crust . Pahoehoe is a lava that
forms a thin crust. Pillow lava forms when lava erupts underwater.
Blocky lava is kool, stiff lava that does not travel far from thr
eruption site.
According to the graph, we can see the total fertility rates that can be compared to the population growth rates, as shown in option C. Thus, option C is the correct answer.
We can arrive at this answer because:
- The chart analyzes the NIR of the regions.
- The NIR is related to the percentage of growth that a population achieved during one year.
- The chart analyzes this value, associating it with the natural growth of these regions.
- This natural growth shows how much the population of a country has grown, without considering the migration that takes place in a country, that is, without considering the people who have moved between regions of the country.
In this case, we know that the graph considers population growth taking into account the birth rate and therefore considering the fertility rate, in one year.
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