Chemistry, 07.11.2020 02:40 kkeith121p6ujlt
The diagram below shows four columns that represent rocks from different geographic regions. Each layer within a column represents a brief period of time. Which of the four fossils would be the most useful as a reference to determine the age of newly discovered fossils? Why?
Answers: 2
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The wave shown on the electromagnetic spectrum disturb the medium it passes through a)different frequency. b)the same frequency .
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Which of the following electromagnetic waves can create ions?
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Chemistry, 22.06.2019 12:50
What is the chemical name of the compound na2co3? use the list of polyatomic ions and the periodic table to you answer. a. sodium carbon oxide b. sodium carbonate c. sodium(ll) carbonate d. sodium oxalate
Answers: 1
The diagram below shows four columns that represent rocks from different geographic regions. Each la...
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