BIOSPHERE (C)
SQA Questions
What you should know
1. Pollution affects the e_________ of ___, f________, s__ and l____.
2. The main sources of pollution are d________, a__________ and i________.
3. Domestic – s______ and r______ e.g. p______
4. Agricultural – f________ and p_________
5. Industrial – s_____ and g______ from f_________ and p_____ stations
cosystems air
reshwater ea and
omestic griculturalndustrial
ewage ubbishlastic
ertilisersesticides
moke ases actories ower
6. When fossil fuels are b______ in power stations to produce e____ the gas s______ d_______ is released which leads to a____ r_____
7. Nuclear w_____ from nuclear power stations can enter f____ c_____ cause c_______ and has to s______ for h_______ of years
8. Pollution can be controlled by r_______ the burning of f______ f_____ and using alternative e______ sources e.g. _____ and r_______ h_______ gases from factory chimneys before r______ into the air (S__________)
urned nergy
ulphur ioxide cid ain
aste ood hains
ancer tored undreds
educing ossil uels
nergy wind
emoving armful elease
CRUBBING
9. O______ waste e.g. s_______ is a f_____ s_____ for m___________
10. If organic waste i_______ then it leads to an i______ in m_____________ which rapidly use up the o______ in the water leading to l____ oxygen in the water for o_____ organisms
11. This lack of o______ will k___ animals and r______ the number of s_______ in the water
12.Organisms that can give i__________ on p_______ are called i_________ species
ewage ood
rganic ource icro organisms
ncreases ncrease icro organisms
xygen ess
ther
xygen ill
educe pecies
nformation ollution ndicator
13.O____ fishing and d_________ of the rainforest are examples of bad management of ecosystems.
14.To prevent overfishing f____ q_____ should be used and the rain forest can be saved if we make f____land m____
p__________15. Modern agriculture involves large areas
of land being used to grow o___ type of crop and leads to o______ of p_______ which k___ wildlife and causes water p_______
ver estruction
ish uotas
arm oreroductive
ne
veruse esticides ills
ollution
16.Farmers use f________, i__________, f_________ and h_________ chemicals to make their land more productive
17.Tropical rain forests are b______ to allow crops to be grown which leads to soil e_______ and loss of soil f_______ and m_____ CO2 released into the a___
ertilisers nsecticide
ungicide erbicide
urned
rosion ertility
ore ir
agricultural
Sea water
Rubbish, litter
X
Use alternative fuels/remove acid gases from smoke / scrubbing / filters on chimneys
Y Treat sewage before discharge
Z Use catalytic converters / unleaded petrol / reduce traffic / use public transport
Litter, sewage
Fertilisers / pesticides
industrial
X
Kills wildlife / over use of pesticides and weedkillers / trees and hedges removed
Y Soil erosion / loss of important plant species / loss of soil fertility / burning releases CO2
Z Large number of bacteria use up oxygen /animals die / algal blooms occur
cockle hydrobia ragworm
curlew
Ringed plover
Decrese in godwits / curlews / plovers / wading birds
Or Decrese in hydrobia / ragworm
Pollution indicator species
Oxygen decreases then increases
sewage decreasing / food supply decreasing
7
Lowest oxygen concentration
Pollution indicator species
8
12693
30
Increasing numbers of bacteria
(Pollution) indicator species
use up lots of oxygen / increased respiration