Earths ecosystems

Question 1

realm

Answer 1

major component of biosphere that differ from each other

Question 2

biome

Answer 2

part of a realm

Question 3

factors affecting biome distribution

Answer 3

light/temp/water

Question 4

what causes biome distribution

Answer 4

humans/resources/distrubance

Question 5

tropics

Answer 5

highly productive, high temp/rain, around equator, not limited by 3 factors

Question 6

threats to tropics

Answer 6

deforestation, over exploited animals

Question 7

dry tropical forest

Answer 7

same as tropic but more threatened

Question 8

temperate (boreal forest/woodland)

Answer 8

moderate-high productive, trees, seasonal, light limited in winter

Question 9

threats to temperate

Answer 9

deforestation, fires

Question 10

shrublands

Answer 10

limited productivity due to lack of nutrients/water, high levels of endemism (species found no where else)

Question 11

threats to shrublands

Answer 11

grazing, invasive species

Question 12

savannas/grasslands

Answer 12

hot, limited water, lots of grass species

Question 13

threats of savannas

Answer 13

poaching, droughts

Question 14

deserts/semi deserts

Answer 14

low rain/productivity, plants are specifically adapted

Question 15

threats to deserts

Answer 15

climate change

Question 16

poles/alpines

Answer 16

low productivity, low light, artic/antarctic

Question 17

threats to poles

Answer 17

permafrost melting, bacteria being released

Question 18

intensive land use

Answer 18

entirely humans, urban/farming/industrial

Question 19

threats to land use

Answer 19

unsustainable agriculture affecting soil health

Question 20

fire return interval

Answer 20

how often things burn, humans increase it, having right fire return interval is needed for biomes

Question 21

COP/kyoto protocol

Answer 21

conference of parties, kyoto protocol sets binding emission reduction targets, for countries

Question 22

problems with protocol

Answer 22

caps carbon production not footprint/ companies cause more problems than countries

Question 23

paris agreement

Answer 23

allows countries to determine own contributions but sometimes countries may not do enough