Water Pollution

1
Water Pollution

• By Alicia

2
Facts About Water Pollution

• Pollution means to make foul or unclean dirty.
• Although we need water, people pollute it anyway.
• Two types of water pollution are point
  non-point sources.

3
Facts About Water Pollution Cont.

• Point source harmful substances are emitted into
  any body of water.
• Non-Point source delivers pollutants indirectly
  through environmental changes.
• Water that can be polluted is rivers, lakes,
  oceans.

4
Causes Of Water Pollution

• Sewage fertilizers which contain nutrients such
  as nitrates phosphates.
• Excess nutrients cause the growth of algae which
  uses up all of the available oxygen.