Fill in Missing Number

question 45

Short Answer

Fill in missing number:

---

Definitions:

Renewable Natural Resources

Things such as forests, water in reservoirs, and wildlife that are capable of growing back or building back up (renewing themselves) if they are harvested at moderate rates.

Natural Capital

The world's stock of natural resources, including geology, soils, air, water, and all living organisms, which provide goods and services that support the economy and life.

Nonrenewable Natural Resource

Things such as oil, natural gas, and metals, that are either in actual fixed supply or that renew so slowly as to be in virtual fixed supply when viewed from a human time perspective.

Timber

Wood that has been processed into beams and planks, a stage in the production of materials for building and furniture making.