About how often do major extinction events seem to occur?

Im pretty sure people will be extinct soon becuz of the viruse thingy but here is the

The extinction event happens periodically about ~65 Million Years~

(How long were humans living by now??)

Anyways hope this helps!

question 1:

senate and house of representatives

i would try to answer the second question but i’m not 100% positive but i hope i

answer; limbic system;