As of December 31, 2029, there 22,731 electric generators at about 10,346 utility scale electric power plants in the United States. (Extra info here: Utility-scale power plants have a total nameplate electricity generation capacity of at least 1 megawatt (MW)
<span> The three zones of latitude :
i) Tropics till 23º.45 (between ± 23º.45)
ii) Temperate zone between 23º.45 to 66º.55. in both Hemispheres
iii) Polar Caps between 66º.55 to 90º, in both Hemispheres.
There are six major climate regions :
1. Tropical rain forests
2. Tropical grasslands (Savannah)
3. Deserts - China climate (from West to East)
4. Mediterranean climate - Temperate grasslands (Steppes, Prairie, Pampa, Veld, Downs)
5. Temperate rain forests - Taiga (from West to East)
6. Polar Ice caps
The matching is ---
1,2 : i)
3,4,5 : ii)
6 : iii) </span>
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.
To learn more about here isotopes here
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