Fire

Question 1

ingredients of fire

Answer 1

fuel, ignition (volcano/lightning), oxygen (21%)

Question 2

dry lightning

Answer 2

high temp, no precipitation

Question 3

where is most lightning

Answer 3

equator

Question 4

fire

Answer 4

rapid chemical oxidative reaction that generates heat/light and produces products

Question 5

fuel needs to be …

Answer 5

dry

Question 6

fire depends on…

Answer 6

fuel being burnt

Question 7

surface fire

Answer 7

only burns ground, low temps

Question 8

crown fire

Answer 8

when fire reaches trees, hot

Question 9

ground fire

Answer 9

slow, most dangerous as smoke kills, hot, burns beneath feet

Question 10

fire regime

Answer 10

fire frequency, fire intensity, fire response

Question 11

landscape change from fire

Answer 11

rock weathering, destruction of vegetation, post fire erosion (after rain)

Question 12

fire changes soil

Answer 12

soil repellence to water increases causing flooding

Question 13

infiltration capacity increases because

Answer 13

charcoal infiltrates increasing flooding

Question 14

burnt charcoal can…

Answer 14

contaminate rivers

Question 15

where is charcoal formed

Answer 15

from fires/volcanoes/pyroclastic, due to incomplete combustion/absence of oxygen

Question 16

pyrolysis reaction

Answer 16

heat from fire penetrates plat tissue with no/little oxygen and preserves cell structure

Question 17

charcoalification

Answer 17

formation of charcoal

Question 18

ash formation

Answer 18

compete combustion

Question 19

charcoal types

Answer 19

wood/plants/flowers

Question 20

other products from fire

Answer 20

soot

Question 21

reconstruct fire history

Answer 21

maps, sediment records, fire scarred trees, some species are adapted to survive fire (thick bark)

Question 22

climate change

Answer 22

fires increased, early snowmelt means larger fires, more lightning as fossil fuels

Question 23

UK

Answer 23

hotter so more wildfires