The answer to your question is True.
Bills and coins that a country actually circulates is called circulation currency. This is money that is used to conduct transactions between consumers and businesses for goods and services. Money that is kept in a bank and in long term investments are not a part of circulation currency because it cannot directly be used for day to day transactions.
Trees give off oxygen that we need to breathe. Trees reduce the amount of storm water runoff, which reduces erosion and pollution in our waterways and may reduce the effects of flooding. Many species of wildlife depend on trees for habitat. Trees provide food, protection, and homes for many birds and mammals.