Which Statement Most Accurately Describes How Matter and Energy Are

question 19

Multiple Choice

Which statement most accurately describes how matter and energy are used in ecosystems?

• A) Matter flows through ecosystems; energy cycles within ecosystems.
• B) Energy flows through ecosystems; matter cycles within and through ecosystems.
• C) Energy can be converted into matter; matter cannot be converted into energy.
• D) Matter can be converted into energy; energy cannot be converted into matter.
• E) Matter is used in ecosystems; energy is not.

---

Definitions:

Reserve Requirements

Mandatory regulations set by central banks determining the minimum amount of reserves that must be held by commercial banks, ensuring they have enough cash on hand to meet withdrawal demands.

Monetary Policy

The process by which a central bank or monetary authority manages the money supply and interest rates to achieve economic objectives.

Interest Rates

The cost of borrowing money, typically expressed as a percentage of the amount borrowed, that borrowers pay to lenders over a specified period.

Money Supply

The sum of all financial resources in the form of cash and deposits in banks present within an economy at a given moment.