Answer:
Answer:
The correct list is inner core, outer core, lower mantle, asthenosphere, lithosphere.
Explanation:
Based on Structural features and chemical composition earth surface is divided into different layers. The main layers can be described as,
1. Core
2. Mantle
3. Crust
Core:
The core is further divided into inner core and outer core. The inner core is extremely hot and solid. The outer core is in fluid form and surround the inner core.
Mantle:
The mantle layer is composed of rocks. The earth's mantle is also divided into two main layers Lower mantle and upper mantle. Asthenosphere is viscous and present just below the rigid lithosphere.
Crust:
Crust is the outermost layer of earth. It is composed of variety of elements. Lithosphere is the part of Crust.
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Answer:
this is my answer hopes it helps you out
Explanation:
i choose A the atmosphere
Answer:
D) the steady, clocklike decay of certain radioactive isotopes over time.
Explanation:
Geologists use radiometric dating to estimate how long ago rocks formed, and to infer the ages of fossils contained within those rocks.
For example, when rocks are formed, such as igneous rocks (formed when molten rocks cools), certain radioactive atoms are trapped inside the rocks during this formation process. Then these radioactive atoms decay over time.
The age of the rock can be estimated by comparing the occurring radioactive isotope within the material to the abundance of its decay products, which form at a known constant rate of decay.
From the options;
A) this is about the formation of the radioactive molecules and not about radiometric dating
B) this is radiocarbon dating (cabon dating/carbon-14 dating)
C) the <em>assumption </em>is wrong since the radioactive isotopes decays not accumulate.
D) the corect option as I explained earlier.
