Say the passive form: The power stations burn fossil fuels.
Fossil fuels are burnt by power stations.
Say the passive form: Lumberjacks cut down the trees.
The trees are cut down by lumberjacks.
Say the passive form: Cars release a lot of CO2.
A lot of CO2 is released by cars.
Say the passive form: Farmers burn down the forests.
The forests are burnt down by farmers.
Say the passive form: Forests make most of the world's rain.
Most of the world's rain is made by forests.
Say the passive form: Satellites phothograph forest fires.
Forest fires are phothographed by satellites.
Say the passive form: Deforestation kills millions of animals.
Millions of animals are killed by deforestation.
Say the passive form: Aeroplanes produce three per cent of greenhouse gases.
Three per cent of greenhouse gases are produced by aeroplanes.
Say the passive form: Greenhouse gases trap the sun's heat.
The sun's heat is trapped by greenhouse gases.
Say the passive form: Climate change produces extreme weather.
Extreme weather is produced by climate change.
Say the passive form:Trees absorb carbon dioxide.
Carbon dioxide is absorbed by trees.
Say the passive form: Power stations produce electricity.
Electricity is produced by power stations.
Ryan takes the photographs.
The phothograps are taken by Ryan.
Maya and Theo write blogs.
The blogs are written by Maya and Leo.
Nigel produces the pictures.
The pictures are produced by Nigel.
Oscar and Amy make the video clips.
The video clips are made by Oscar and Amy.
