atoms to 75 percent 40Ar and 40Ca atoms.
How many years old is this rock?
(1) 0.3 10^9 y (3) 2.6 10^9 y
(2) 1.3 10^9 y (4) 3.9 10^9 y
The age of the rock is mathematically given as
t= 2.6 10^9 y
Question Parameter(s):
a ratio of 25 percent 40K
atoms to 75 percent 40Ar and 40Ca atoms.
Generally, the equation for the half lif is mathematically given as
Therefore
t= 2.6 10^9 y
In conclusion, the age of the rock is
t= 2.6 10^9 y
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The percentage of languages that are dying out in Asia is only around 20% from the total number of languages dying out in the world, despite it having around 60% of the global population is due to two reasons:
- Number of languages;
Asia, even though it has around 60% of the world's population, it only has around one third of the languages spoken in the world, so automatically there's a big disproportion between the number of population and number of languages, thus giving it a smaller percentage of languages dying out.
- Keeping the tradition;
Lots of Asian nations are not very willing to let their traditional language to die out and continue to speak it. Apart from the traditional point of view, another reason is that Asia has global economic powers, so learning languages like the English or Spanish are not of great benefit in general, so the pressure is much lesser.
Answer:
Number of languages
Explanation:
Even though some are dying out, people are shifting on to other languages
How might it feel ?