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suter [353]
3 years ago
12

How many half-lives did the rock go through? 4. If a rock had 40 daughter atoms present, how old would the rock be?

Geography
2 answers:
MrRissso [65]3 years ago
5 0
160 I would say hope this helped
Nina [5.8K]3 years ago
4 0
160 should be the right answer
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Well, it depends from country to country. With most of them they have good economical relations, which is normal, as the are mutually dependent on certain products. For example Russia is the main gas exporter in the wide region. In some countries, they even have larger political influence, such as Belarus, while for example with Ukraine they have bad political relations, due to crisis on Crimea.

Explanation:

After the collapse of Soviet Union strong economic ties between Russia and other countries that were part of it remained, but of course as the time passed things have changed. Recently, Russia re-emerged as a great force thus creating large political influence in certain countries. Therefore, they are seen as a threat by certain countries, especially by Ukraine.

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