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What do we use land for?
What is deforestation and what can it lead to?
The more _____ that is used by ______ the more of it becomes ______.
What is clean water needed for?
Rivers and seas can become polluted by?
Is normal rain acidic, neutral or an alkaline?
a) What are the main gases produced by vehicles and industry?
b) What happens when they dissolve into the rain?
What are the effects of acid rain on a plant?
(3)
What problems in general can acid cause?
What is soot?
What effects does soot have?
(2)
What happens when fossil fuels are burnt?
How is smog formed?
Explain the greenhouse effect.
Define biodiversity.
an area has several plants but only one plant is common
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Is this a low or high biodiversity?
An area with a high biodiversity is rich in wildlife and is worth ________.
What is an endangered species?
What are the three main causes for the extinction of a species?
Steps being taken to protect species are:
