Pls help What can you conclude from the fact that there have been
just four eons in Earth's history?
A
Eons are very short periods of time
B
Eons always last less than 1 billion years
C Geologists only began naming eons recently
D
There have been at least eight periods in earth's histor

D: There have been at least eight periods in earth's history

Explanation:

branches of government. to ensure a separation of powers, the u.s. federal government is made up of three branches: legislative, executive and judicial. the legislative branch is made up of the house and senate, known collectively as the congress.