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WorksheetsBiological Indicators of Pollution
Total questions: 12
Worksheet time: 7mins
Which pollutants are lichen sensitive to?
sulphur dioxide
nitrous oxides
carbon dioxide
carbon monoxide
What type of lichen would you expect to find growing only in very clean air
crusty
leafy
bushy
A biological indicator of too much nitrate in water can be...
cloudy water
no algae present
algal bloom
dead fish
freshwater organisms are sensitive to levels of (a) in water
These organisms only survive in very clean water
red tailed maggots and sludgeworms
Mayfly larvae and stonefly nymph
caddis fly larva and freshwater shrimps
water louse
Acid rain can cause what to leach out of soils?
Aluminium
Magnesium
Sodium
Potassium
Acid rain damages ....
limestone
granite
sandstone
marble
Which of the following is most sensitive to changes in pH?
Frogs
Trout
Crayfly
Water snails
Which of the following is a reason why freshwater macroinvertebrates are used as indicator species?
They are found in all aquatic habitats.
They are often diffulcult to collect.
None are capable of tolerating pollution.
Often live for less than one week.
What is an indicator species?
environmental indicators that offer a signal of the biological condition in a watershed
any animal with a backbone and large enough to see without the aid of a microscope
plants that have adapted to living in aquatic environments (saltwater or freshwater)
microscopic, single-celled organisms that thrive in diverse environment
Which is a better indication of the water quality, the number of organisms (for example 12 crayfish are found at one site) or the type of organisms (water penny larvae are found with lots of lunged snails and leeches) found at a site?
number of organisms
the type
neither are important
_______________ is caused by fumes, smoke and other things like that.
Air pollution
Water Pollution
Noise Pollution
