What are the most important natural resources of Puerto Rico?

* Copper

* Gold

* Nickel

* Silver

* Zinc

Energy

* Biomass

* Natural gas

* Oil

* Solar energy

* Wind energy

Water

* Rivers

* Lakes

* Reservoirs

* Aquifers

* Desalination plants

Forests

* Tropical rainforests

* Mangroves

* Dry forests

* Cloud forests

Beaches

* White sand beaches

* Black sand beaches

* Coral reefs

Wildlife

* Birds

* Reptiles

* Amphibians

* Mammals

* Fish