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:
Eritrea has faced several challenges since gaining independence from Ethiopia in 1993. The country has only one political party that maintains all of the control. Democratic national elections have yet to be held; the transitional government is still in power, and no constitution has been implemented. Furthermore, territorial disputes with Ethiopia continue. Eritrea's command economy is struggling. Over 80% of the population is engaged in subsistence agriculture. Climate changes have created problems for agriculture, and drought is a major issue. Finally, property damages due to war have proven costly.
Explanation:
That is the correct sample response.
Their change in position is caused by the movements of the tectonic plates.
