Which gas is collected from landfills and can be used as energy?
Butane
Carbon dioxide
Methane
Ethane
Which continent has the lowest per capita water availability?
Africa
Europe
Asia
Australia
Which form of mining involves using water to separate minerals from soil or gravel?
Subsurface mining
Strip mining
Mountaintop removal
Placer mining
Which country is the leading producer of uranium for nuclear energy?
USA
Russia
Kazakhstan
Canada
What resource is produced in the greatest volume worldwide for energy?
Natural gas
Oil
Coal
Hydropower
Which type of forest is most affected by commercial logging?
Tropical rainforest
Boreal forest
Temperate forest
Mangroves
Which energy source has the highest capacity factor (i.e., actual output vs. potential)?
Solar
Wind
Hydropower
Nuclear
Which rock type is most associated with the presence of fossil fuels?
Sedimentary
Igneous
Metamorphic
Volcanic
“Reduce, Reuse, Recycle” is related to?
Climate change
Waste management
Water harvesting
Forest conservation
Which of the following helps in soil conservation?
Mining
Overgrazing
Deforestation
Contour plowing
