Ecology Part 2

What is the chemical formulae for sulphur dioxide

• S₂O₂

• SO₂

• S₂O

• 2SO

CO is the chemical formulae for...

Carbon monoxide is toxic because it binds to ............. in your red blood cells, so less oxygen transported to respiring tissue

Nitrogen oxides can dissolve in rainwater to form acid rain (nitric acid). How are they formed?

• Burning coal in power stations

• Released by denitrifying bacteria

• High temperature inside car exhausts

How can you prevent acid rain killing aquatic life in lakes or crops on farmland?

• Neutralise the lakes and farmland by using lime

• Use a biological control

• It is not possible to prevent the effects of acid rain

Select all of the greenhouse gases below

• Water Vapour

• Nitrous Oxide and Carbon Dioxide

• Methane

• CFCs

• Argon

Select the negative effects of increased greenhouse gases on the environment

• More global warming

• Rising sea levels

• Less extreme weather patterns

• Extinction of species

• Habitat destruction

How can the amount of greenhouse gases in the atmosphere be reduced?

• Burn less fossil fuels

• Plant more trees

• Reduce cattle farming

• Use renewable energies

• Use aerosols

When sewage enters water systems the water can be come anoxic. What does this mean?

• Too much oxygen available

• No oxygen available

Why does water pollution reduce the amount of oxygen in water systems

• In times of stress, the fish rapidly use up the oxygen for respiration

• Bacteria use up the oxygen to decompose the waste material

• The oxygen reacts with the waste