CM8001

The techniques mainly used nowadays are reverse osmosis and distillation. Both of these techniques require a lot of energy and is thus, expensive to use. It is cheaper to find freshwater and then transport it out. Thus, desalination techniques is not widely used as it is not economic and efficient-friendly.

Water-soluble vitamins are polar and fat-soluble vitamins are non-polar compounds. This is because ‘like dissolves like’. Water is polar and therefore water-soluble vitamins are polar.

a) Instead of using a dryer, it helps to reduce the electricity usage.
b) Instead of driving, it helps to reduce carbon oxides, nitrogen oxides and sulphur oxides emissions.
c) This will help to reduce electricity consumption when the dishwashers and washing machines are run with bigger loads.
d) The insulation will help to keep the water hot, thus reducing electricity consumption.
e) This is reduce the need for transportation of the food, thus reducing carbon oxides, nitrogen oxides and sulphur oxides emissions.

a)Coal fired plants will churn out smoke and small droplets of SO3, which leads to poor visibility
b)The pH is around 4.5. The pH of natural rain is 5.5. And since the rain is 10 times more acidic, it’s pH is 1 unit lower.