Week 3 Q4K ¦ Geography Cycle 2 Flashcards
What is chemical weathering?
The decomposition of rocks caused by chemical change within that rock.
What is humus?
The organic component of soil.
What is leaching?
The loss of water-soluble plant nutrients from the soil.
What is bedrock?
The substructure composed of hard rock exposed or buried at the surface.
What is epiphytes?
Plants that have adapted to live on other plants.
What is lianas?
A long stemmed woody vine that is rooted in the ground and uses trees to climb up to the canopy layer of the forest.
What is the emergent layer?
Trees whose tops poke up above the rainforest canopy layer.
What is the canopy?
A dense layer of vegetation below the emergent layer.Sunlight is blocked and provides shade to the plants below it.
What is the under-canopy?
A layer above the forest floor and in the gap before the canopy.
What is the forest floor?
The ground level of a tropical rainforest.
What is buttress roots?
Large and wide roots on all sides of a shallowly rooted tree.
