- PERENNIAL: A woody or herbaceous plant that continues its growth for at least three years.
- DECIDUOUS: Shedding the leaves annually, as certain trees as oaks.
- TROPICAL FOREST: It is similar to jungle, but less dense.
- TAIGA: It is a coniferous forest located in the northern areas.
- SUSTAINABLE DEVELOPMENT: It refers to a mode of human development in which resource use aims to meet human needs while preserving the environment.
- THEMATIC MAP: It is a type of map or chart especially designed to show a particular theme connected with a specific geographic area
- CONIFER: Trees that bear cones and evergreens leaves.
- TUNDRA: It is the polar flora. It is a herbaceous formation of moss and lichen.
- DEFORESTATION: It is the removal of a forest.
- HOLM OAK: It is an evergreen oak that grows southwest Europe.
H. G. Wells: “History is a race between education and catastrophe”.