Test Flashcards
State two local factors affecting biomes
Altitude- the temperature drops as the altitude increases therefore this can affect plant growth
Rock and soil type-Can affect how fertile different areas are within a biome
Describe the distribution of the tropical rainforest biome
The tropical rainforest is located near the equator. They can be found in central and South America
Explain the difference between biophysical and bio chemical weathering
Physical weathering is done by water temperature in wind where is bio chemical weathering is caused when rocks undergo chemical reactions
What is biotic and abiotic
Biotic is living things like insects plants trees and mammals
Abiotic is nonliving things such as soils rocks and the climate
Compare the characteristics of tropical rainforest and desert Biomes
Tropical rainforest have high annual rainfall with over 2000 mm per year they also have high average temperatures and not very fertile soil. Unlike tropical rainforest deserts have very little plant growth and have very little annual rainfall
What is the hydrological cycle
Plant helps to regulate the water cycle as plants intercept and absorb visitation slow and its movement to the ground this reduces surface run-off and the Flood risk
Explain one way the biosphere can maintain soil health
Leaf litter puts vitamins into the soil and improve soil fertility As it decomposes which reduces the need for fertilising
Case study Juma location
Tropical rainforest in the Amazon , Brazil
What do they do
Local people being paid to not cut down the forest. The money to pay for the conservation are from hotels therefore the donations can stop at any point
Successes of Juma
Without conservation by 2050 60% of the forest would of been gone, they’ve built seven schools, trained people in sustainable farming, provided cleaner water and added solar panels to some roofs using the funding
Malthus theory
Population grows geometrically( ie 1,2,4,8,16) while food production increases arithmetically( ie 1,2,3,4,5) Therefore there will come a point where there will not be enough food to provide for everyone
What are the characteristics needed to form a tropical storm
Supply of warm moist air over sea. High air pressure
What’s the Coriolis effect
Because the Earth rotates the air does not flow in a straight line as the air moves above the surface of the Earth underneath the planet continues to rotate so wind actually follows a curved path
Describe how the Earth receive different levels of solar insolation
The angle of the Sun rays makes so insulation very intense at the equator but dispersed over a wide area at the poles
What is the eye of the storm
The centre of the storm consisting of condescending dense air