ENVIRONMENTAL MANAGEMENT IGCSE EXAM GRADED A+
abiotic - correct answer the non living, physical components of
an environment
acidic volcano - correct answer a volcano made up of just lava,
which is thick and doesn't flow easily, giving the volcano
steep sides
adit - correct answer the entrance to a horizontal mine
aerosols - correct answer sprays containing fine particles
which become suspended in the atmosphere
,ENVIRONMENTAL MANAGEMENT IGCSE
age pyramid - correct answer a diagram to show the
proportion of the population which is made up of
different genders and ages
algae - correct answer a plant like, photosynthetic organism
which lacks roots, stems and leaves
algae bloom - correct answer the rapid increase in algae
population
antecedent soil moisture - correct answer the amount of
water in the soil before rainfall
antinatalist policy - correct answer a government plan to
decrease the birth rate
aquifer - correct answer porous rock which stores water
arable farming - correct answer the production of crops from
land
,ENVIRONMENTAL MANAGEMENT IGCSE
artesian aquifer - correct answer an aquifer where the water is
under pressure
asthenosphere - correct answer the top layer of the mantle
basalt - correct answer an igneous rock form formed by
cooling lava
basic volcano - correct answer a broad volcano formed by
layers of cooling lava
Benioff zone - correct answer a zone of earthquake activity
along the upper portion of a sinking plate, as it scrapes
past the opposing plate, in a subduction zone
bioaccumulation - correct answer the build up of a substance
in the body of a living thing
, ENVIRONMENTAL MANAGEMENT IGCSE
bioethanol - correct answer the creation of ethanol by
fermentation
biogas - correct answer the creation of methane from the
break down of organic matter in an anaerobic digester
biomagnification - correct answer the concentration of a
substance becomes higher at progressively higher levels
in the food chain
bioremediation - correct answer living things are used to
remove toxic chemicals from a natural site
biotic - correct answer the living, organic components of an
environment
birth rate - correct answer the number of live births per 1000
people per year
boiler - correct answer a vessel used to heat water converting
it to steam