Write an overview (key features)

Which of the following is NOT considered as a key feature

The maximum level of SO2 in Calcutta is higher than that of N2O
The differences between maximum and minimum levels in Los Angeles and Beijing were the most significant
The pollution level in Mexico City was the highest

Which of the following is NOT considered as a key feature:

(sources of electricity produced in 4 countries)

Hydro power was the major source of electricity in Sweden and Morocco
In Vietnam fossil fuel accounted for a bigger proportion of electricity production than hydro power
India and Vietnam mainly relied on fossil fuel

Which of the following is NOT considered as a key feature:

Which of the following is NOT considered as a key feature

(renewable energy in four countries)

The figures of Australia and Sweden were the lowest over the period
The production of renewables in Turkey went up from 1997 to 2000.
The proportion of renewable resources in Iceland and Turkey remained the highest