AQA A-Level Environmental Science 3.4 Pollution overview quiz quiz

Only when present in a quantity or concentration that causes harm

Whenever it is released into the environment, regardless of the quantity involved

Only if it is a synthetic man-made chemical rather than a natural substance

Only if it is directly toxic to humans rather than to other organisms

Bioaccumulation building up within a single organism over its lifetime

Biomagnification

Eutrophication caused by excess nutrients entering the water

Persistence of a pollutant that resists being broken down

Carbon dioxide and methane, the two main greenhouse gases

CFCs and carbon monoxide released from refrigerants and engines

Sulfur dioxide and nitrogen oxides

Airborne particulates and ground-level ozone

Nitrogen

Carbon dioxide

Sulfur

Chlorine

Bacteria decomposing dead algae use up the dissolved oxygen

The dissolved nutrients in the runoff are directly poisonous to the fish

The water rapidly becomes far too acidic for the fish to survive in

The dense mat of algae physically feeds on and consumes the fish

The water is clean and well oxygenated

The water has heavy organic pollution

The water contains no microorganisms

The water is too cold for life

Heavily polluted, low-oxygen water

Very warm water

Clean, well-oxygenated water

Salt water only

Oxygen

Sulfur dioxide

Helium

Methane

Reduce, reuse, recycle, recover, dispose

Dispose, recover, recycle, reuse, reduce

Recycle, reduce, reuse, dispose, recover

Reuse, recycle, reduce, dispose, recover

It is always a strict legal requirement imposed under environmental law in every single country

It avoids producing the pollutant at all and is usually cheaper and more effective

It reliably produces a much greater quantity of waste than treatment does

It only works for air pollution and cannot be applied to water or land

The government should use public money to pay for cleaning up all pollution

Consumers should each pay a fixed annual pollution tax to the state

Those who cause pollution should bear the cost of the damage and clean-up

Polluters should be banned outright from operating their businesses

The series of chemical reactions in the atmosphere that form the pollutant

The fastest available method for diluting a pollutant once it is released

The maximum legal concentration limit set for a pollutant in the environment

The route by which a pollutant reaches and harms organisms