Precise time of an element's radioactive decay can be studied with the help of amount of Carbon on the body. By measuring and comparing the amount of Carbon on the body, Scientists interpret, & can calculate the actual age of an object
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Answer:
The composition of Earth's core Solid iron surrounded by molten iron .
Explanation:
Earth's Core -
Earth's core is the hottest and the deepest layer in the Earth . It is composed of two layers , first is , the outer core , which is type of border between the mantle and the core , and second is the inner core .
The inner core is rich in solid , and mainly contains iron , and the outer core is in liquid state , which is rich in nickel and iron metals . the outer core is where the Earth gets its magnetic field .
All of the above are true
The Earth rumbles and a hiss of steam issues from the top of Mt Ruapehu. Are these two events related? Is the earthquake caused by the volcano? Or is the steam caused by the earthquake?
Tectonic plates
When Alfred Wegener first proposed the idea of continental drift (the precursor idea to plate tectonic theory), it didn’t quite explain the full story. While he correctly showed that Africa and South America fitted together, his model wasn’t able to explain the violent forces that occur around the Earth’scrust.
Answer:
C
Explanation:
Sub-Saharan Africa is, geographically and ethnoculturally, the area of the continent of Africa that lies south of the Sahara. According to the United Nations, it consists of all African countries and territories that are fully or partially south of the Sahara.
