Match the beginnings of sentences on the right to the ends on the left.

There are several reasons	choose of the amount of fossil fuel we use, pollution will always be a problem. we use too much fossil fuel. in a major drop in illiteracy. to an increase in demand in the labour market. to more congestion not less. of global warming. many people to choose to work abroad for a few years. to the negative effects of globalisation. why this has become an increasingly serious problem.
Scientists are still uncertain about the exact cause	choose of the amount of fossil fuel we use, pollution will always be a problem. we use too much fossil fuel. in a major drop in illiteracy. to an increase in demand in the labour market. to more congestion not less. of global warming. many people to choose to work abroad for a few years. to the negative effects of globalisation. why this has become an increasingly serious problem.
Building more roads has led	choose of the amount of fossil fuel we use, pollution will always be a problem. we use too much fossil fuel. in a major drop in illiteracy. to an increase in demand in the labour market. to more congestion not less. of global warming. many people to choose to work abroad for a few years. to the negative effects of globalisation. why this has become an increasingly serious problem.
A better standard of teaching at primary school level has resulted	choose of the amount of fossil fuel we use, pollution will always be a problem. we use too much fossil fuel. in a major drop in illiteracy. to an increase in demand in the labour market. to more congestion not less. of global warming. many people to choose to work abroad for a few years. to the negative effects of globalisation. why this has become an increasingly serious problem.
The high salaries available in more advanced economies has caused	choose of the amount of fossil fuel we use, pollution will always be a problem. we use too much fossil fuel. in a major drop in illiteracy. to an increase in demand in the labour market. to more congestion not less. of global warming. many people to choose to work abroad for a few years. to the negative effects of globalisation. why this has become an increasingly serious problem.
Pollution will always be a problem because	choose of the amount of fossil fuel we use, pollution will always be a problem. we use too much fossil fuel. in a major drop in illiteracy. to an increase in demand in the labour market. to more congestion not less. of global warming. many people to choose to work abroad for a few years. to the negative effects of globalisation. why this has become an increasingly serious problem.
Because	choose of the amount of fossil fuel we use, pollution will always be a problem. we use too much fossil fuel. in a major drop in illiteracy. to an increase in demand in the labour market. to more congestion not less. of global warming. many people to choose to work abroad for a few years. to the negative effects of globalisation. why this has become an increasingly serious problem.
The rate of unemployment has fallen in some countries thanks	choose of the amount of fossil fuel we use, pollution will always be a problem. we use too much fossil fuel. in a major drop in illiteracy. to an increase in demand in the labour market. to more congestion not less. of global warming. many people to choose to work abroad for a few years. to the negative effects of globalisation. why this has become an increasingly serious problem.
The rate of unemployment has risen in some sectors of the economy due	choose of the amount of fossil fuel we use, pollution will always be a problem. we use too much fossil fuel. in a major drop in illiteracy. to an increase in demand in the labour market. to more congestion not less. of global warming. many people to choose to work abroad for a few years. to the negative effects of globalisation. why this has become an increasingly serious problem.