Examples: methane, petrol, wood, marble, soil for agriculture, hydroelectric power, building materials, bauxite, nonmetallic ores etc.
Only some natural resources are exploited.
Of course, its a normal situation.
The reserves of coal in Romania are very limited; also they are of modest quality.
Fertile soils, forests, fossil fuels and minerals.
Romania is rich in natural resources, such as gold, silver, and lignite.
oil, methane gas, wood, building stones, salt, soils
Examples: soil for agriculture, wood, oil, methane, building stones, hydroelectric power etc.
Any special problem exist during the summer.
Nothing special; during the summer the quantity of fuels for heating is lower.
Romania has energy resources but not so abundant.
the minerals are natural resources
Piedmont's Natural Resources is natural gas.