Renewable resources are the resourses that don't run out since they naturally replenish (wind, solar energy etc), non-renewable resources are resources that won't replenish and fossil fuels are resources formed by natural processes but are considered as non-renewable because they take million years to form.
a)Health problems and global warming.
b)Hydro-energy is renewable and doesn't pollute and nuclear energy does not produce greenhous gases and it's cheap to run.
2.b) i) wind
c) i) coal
d) iii) wave
3.energy;solar power;...;solar energy;glass;sun light.
