Tropical Rainforests

Question 1

Deforestation

Answer 1

50% has been removed due to farming, population pressure and roads, these all cause the cut down of trees.

Question 2

Features of a tropical rainforest

Answer 2

• found between tropics of cancer and Capricorn.
• rainfall everyday
• surrounded by trees
• trees keep leaves all year round
• greatest bio diversity
• rapid nutrient cycle
• rich variety

Question 3

Layers of forest

Answer 3

Emergents = 50m

Canopy layer = 30m, very little light reaches forest floor (1% reaches forest floor)

Under canopy = dense undergrowth

Forest floor = animals are found here and play key part in forest

Question 4

How adaption takes place

Answer 4

• trees grow all year round
• no need for autumn leaf loss, shed all year round
• trees grow tall, so energy isn’t wasted and therefore they can grap photosynthesis
• leaves have drip tips in order for water to run off them
• emerald tree boa - camouflages itself in tree

Question 5

Trees re grow

Answer 5

When trees drop to ground it’s like litter so the cycle starts again.