In the Drake Equation (Number of Civilizations = NHP ×

question 54

Multiple Choice

In the Drake equation (Number of Civilizations = NHP × f_life × f_civ × f_now , what do we mean by f_ now?

• A) The fraction of planets with civilizations at the present time (as opposed to only in the past or future)
• B) The fraction of planets in the galaxy on which a civilization could theoretically develop right now
• C) The fraction of civilizations in the universe that currently are sending messages to us
• D) The fraction of all species ever to exist that we currently are aware of

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Definitions:

Reconciled Cash Balance

The balance of cash on hand after adjustments have been made for receipts, payments, errors, and discrepancies during a specific period.

Check Stub

A portion of a check that is retained as a record, detailing the amount, date, and other relevant information about the transaction.

Balance Brought Forward

The opening balance of an account that is carried over from the end of a previous period.

Check Amount

Check Amount refers to the specific monetary value written and payable on a check, representing the total to be transferred from the account of the drawer to the payee.