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BIOSPHERE (C). SQA Questions. What you should know. cosystems. air. ea. and. reshwater. Pollution affects the e_________ of ___, f________, s__ and l____. The main sources of pollution are d________, a__________ and i________. Domestic – s______ and r______ e.g. p______

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biosphere c

BIOSPHERE (C)

SQA Questions

what you should know
What you should know

cosystems

air

ea

and

reshwater

  • Pollution affects the e_________ of ___, f________, s__ and l____.
  • The main sources of pollution are d________, a__________ and i________.
  • Domestic – s______ and r______ e.g. p______
  • Agricultural – f________ and p_________
  • Industrial – s_____ and g______ from f_________ and p_____ stations

omestic

gricultural

ndustrial

ewage

ubbish

lastic

ertilisers

esticides

moke

ases

actories

ower

slide3

urned

nergy

ulphur

ioxide

  • When fossil fuels are b______ in power stations to produce e____ the gas s______ d_______ is released which leads to a____ r_____
  • Nuclear w_____ from nuclear power stations can enter f____ c_____ cause c_______ and has to s______ for h_______ of years
  • Pollution can be controlled by r_______ the burning of f______ f_____ and using alternative e______ sources e.g. _____ and r_______ h_______ gases from factory chimneysbefore r______ into the air (S__________)

cid

ain

aste

ood

hains

ancer

tored

undreds

educing

ossil

uels

wind

nergy

emoving

armful

elease

CRUBBING

slide4

rganic

ewage

ood

ource

icro organisms

ncreases

ncrease

  • O______ waste e.g. s_______ is a f_____ s_____ for m___________
  • 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
  • This lack of o______ will k___ animals and r______ the number of s_______ in the water
  • Organisms that can give i__________ on p_______ are called i_________ species

icro organisms

xygen

ess

ther

xygen

ill

pecies

educe

nformation

ndicator

ollution

slide5

ver

estruction

  • O____ fishing and d_________ of the rainforest are examples of bad management of ecosystems.
  • To preventoverfishing 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_______

ish

uotas

arm

ore

roductive

ne

veruse

esticides

ills

ollution

slide6

ertilisers

nsecticide

  • Farmers use f________, i__________, f_________ and h_________ chemicals to make their land more productive
  • 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___

ungicide

erbicide

urned

rosion

ertility

ir

ore

slide7

agricultural

Sea water

Rubbish, litter

slide8

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

slide9

Litter, sewage

Fertilisers / pesticides

industrial

slide10

X

Kills wildlife / over use of pesticides and weedkillers / trees and hedges removed

Soil erosion / loss of important plant species / loss of soil fertility / burning releases CO2

Y

Large number of bacteria use up oxygen /animals die / algal blooms occur

Z

slide11

cockle

hydrobia

ragworm

slide12

curlew

Ringed plover

Decrese in godwits / curlews / plovers / wading birds

Or Decrese in hydrobia / ragworm

Pollution indicator species

slide14

sewage decreasing / food supply decreasing

7

Lowest oxygen concentration

Pollution indicator species

slide16

8

126

93

30

slide17

Increasing numbers of bacteria

use up lots of oxygen / increased respiration

(Pollution) indicator species