pollution

why is the greenhouse effect named this way?

• because it's similar to the effect which keeps an unheated greenhouse warmer than the air outside.

• because the exchange of incoming and outgoing radiation that warms the planet works in a similar way to a greenlight

• because it uses similar application used in farming house

• because it restricts the amount of sunlight passing through the earth

which layer contains the ozone layer?

• mesosphere

• stratosphere

• troposphere

• exosphere

The main source of CFCs is burning fossil fuels.

• True

• False

The graph shows the levels of dissolved oxygen and mineral ions in a river. At which point does raw sewage enter the river?

• A

• B

• C

• D

Effluent from properly treated sewage cause eutrophication.

• True

• False

which of these describe the effect of nuclear fall-out pollution?

• acid rain

• deforestation

• global warming

• increased mutation rate

which of the following is the correct definition for a sustainable resource?

• removed from the environment without it running out

• a non-renewable resource

• the resource which uses plastic for cycling

• a source that is running out

Pollutant gases that cause acid rain?

• SO₂

• NO₂

• CO₂

• O₂

which form of pollution does this image represent?

• acid rain

• greenhouse gases

• nuclear fall-out

• eutrophication

which of these is the cause of the biggest problem for aquatic life globally?

• eutrophication

• global warming

• use of herbicides

• plastic microbeads