Historical objects in museums all over the worlshould be returned to their country of origin. To what extent do you agree or disagree?
Solar energy is becoming more and more popular as a source of household energy in many countries around the worls. Why is this? What are the advantage and disadvantage of solar energy.
The first graph shows the average worls oil price for each year from 1970 to 2005. The second chart shows the top six oil-exporting countries and how much they export each day.