Answer:
Geolgic time is measured by observing the changes in the fossils from oldest to youngest sedimentary rocks.
Explanation:
A volcano erupting can destroy the forest around it. That is an example of the geosphere acting on the biosphere.
The Presidential election in Nigeria in 1999 was significant
because it is the first election after the 1993 coup and it is the first
election of the Nigerian republic. In this election, Olusegun Obasanjo won over
Olu Falae. 62.78% of votes was casted under Obasanjo.