People And The Biosphere

Question 1

what is the difference between a biome and the biosphere?

Answer 1

A biosphere is thin space between the lithosphere and the atmosphere, where life occupies. Where as a biome is the large regions in the biosphere, with it’s own climate, and species

Question 2

which three factors affect the growth of plants

Answer 2

temperature - plants need a temperature of over 5 degrees
precipitation and water availability
sunlight hours and intensity

Question 3

describe were forest biomes are found and why

Answer 3

Forrest biomes are found in areas of low pressure and high rainfall at the boundary between cells, because there is high rainfall so plant growth is more efficient

Question 4

name 3 local factors that can affect biomes or ecosystems

Answer 4

rock and soil type, water availability and drainage and altitude

Question 5

explain how altitude affects ecosystems

Answer 5

altitude, means that these a lower temperature and higher precipitation. in the area at the foot of the mountain is rain forest and as you increase in high, it turns into shrubs and mountain forests then tundra and glaciers

Question 6

what are biotic and abiotic components of a biome

Answer 6

biotic - the living part of the ecosystem
abiotic the non-living part of the ecosystem

Question 7

what dose a chimate graph show?

Answer 7

This Graph shows the between precipitation and temperature within the months of the year. the bars of the graphs show the change in precipitation across the year and the line represents the average temperature across the year.

Question 8

explain the difference between provisioning and regulating services.

Answer 8

provisional sevices are products obtaind from the ecosystem e.g. nuts and fish
regulating services keep the area/ecosystem healthy by contolin carbon dioxide levels and regulate the flow of water, that regulate the hole ecosystem.

Question 9

how to the Efi people depend on the ecosystem for their lifestyle

Answer 9

the Efi people depend upon the ecosystem, to provide every thing in there life’s from the wood and leaves needed to make the houses, to the monkey and fish they eat, they use plants and wild honey to make traditional medicines.

Question 10

what dose slash and burn mean

Answer 10

slash and burn farming is when famers clean small areas of forest by cutting and burning. the ash form burning adds nurturance to the soil,. after 5-6 years, the farmer leaves as the soil becomes infertile so they move to a new area

Question 11

how will deforestation affect the amount of carbon in the atmosphere and why?

Answer 11

more carbon dioxide can end up in the atmosphere if humans destroys biomes though deforestation so biomes can absorb less air if these trees are burned because this realises their stored carbon. these actions increases the amount of carbon dioxide in the atmosphere which leads to more global warming.

Question 12

explain the nutrient cycle

Answer 12

the nutrient cycle is when dead plants and animals litter the Forrest floor and decompose introduce the nurturance back to the soil. Then as plants grow the take in the nuturance and the cycle continues

Question 13

explain the importance of the biosphere to the water cycle

Answer 13

biomes, especially forests are an important part of the hydrological cycle. If we destroy a forests biome, this can have serious effects on the water cylce

Question 14

state 3 reasons for the increased pressure on resources

Answer 14

rising global population,
rising affluence
increase urbanisation

Question 15

what dose industrialisation mean

Answer 15

a shift away from people living in the countryside to people living in city’s working in factories and offices

Question 16

how can increesed use of resorces affect biomes

Answer 16

to gather resources such as mining would require deforestation to gather

Question 17

explain Malthus theory

Answer 17

population would increase geometrically and food supply would increase arithmetically. in this way population would be cut due to a lack of food supply.

Question 18

how is boserup’s theory different to Malthus?

Answer 18

Malthus is a pessimistic view and Boserup’s is a optimistic view, as it says that as population increases so would food supply.

Question 19

what is meant by the term ‘natural check’

Answer 19

when a population increases to the land of food supply would be a decline in population due to disease and drought

Question 20

how might the quality of resources be affected in the future.

Answer 20

A crisis might occur because the quality of remaining resources becomes low rather than the quantity becoming small:
- rivers and lakes could be so polluted that their water is unsuitable
- soils may become so eroded and infertile that few crops can be grown
- when oil and gas run out, we may turn to burning dirty, polluting coal.