'Activity' in the Bible

There is an occasion for everything,and a time for every activity under heaven:

I said to myself, “God will judge the righteous and the wicked, since there is a time for every activity and every work.”

But better than either of them is the one who has not yet existed, who has not seen the evil activity that is done under the sun.

For every activity there is a right time and procedure, even though man’s troubles are heavy on him.

When I applied my mind to know wisdom and to observe the activity that is done on the earth (even though one’s eyes do not close in sleep day or night),