subject
Geography, 04.04.2020 02:00 richard376

An igneous rock that originally had 8000 atoms of a certain radioactive material when it was formed is found to now have only 250 atoms of that material left. If the half-life of the radioactive material is 2 million years, how old is the igneous rock

ansver
Answers: 3

Another question on Geography

question
Geography, 21.06.2019 22:30
Which of the following lakes is not found in africa?
Answers: 3
question
Geography, 22.06.2019 10:30
The difference(s) between the grand canyon and valles marineris is/are: (a) the grand canyon was formed by water, but valles marineris was not. (a) valles marineris is much longer than the grand canyon. (c) valles marineris is much wider than the grand canyon. (d) valles marineris has large volcanoes near it. all of the above
Answers: 1
question
Geography, 22.06.2019 16:10
What is the name of the ocean current that affects the british isles? how does it influence their climate?
Answers: 1
question
Geography, 22.06.2019 17:40
Which factors add to the greenhouse effect and are caused by human activities?
Answers: 1
You know the right answer?
An igneous rock that originally had 8000 atoms of a certain radioactive material when it was formed...
Questions
question
World Languages, 24.08.2021 19:00
question
Mathematics, 24.08.2021 19:00
question
Mathematics, 24.08.2021 19:00
question
Social Studies, 24.08.2021 19:00