The fact that volcanic rock has often been found early in the rock record but less frequently in later rock layers suggest to scientists the following conclusion about early earth: <span>volcanic activity was more common in the past than it is today.
</span>Besides volcanic activity in general, also huge volcanic eruptions<span> were much </span>more common than today<span>.</span>
Answer: You could use old documents to help you make new medicine.
Explanation:
<span>the gateway of a Shinto shrine, with two uprights and two crosspieces.</span>
