Arrange the given facts about ecological problems into two groups. Add more ideas to each group.

• Группы
  • Negative effects of ecological problems
  • Ways to solve ecological problems
• Варианты
  • Air pollution makes it difficult to breathe.
  • We should plant new trees.
  • Deforestation means the loss of natural habitats for animals and birds.
  • Polluted water is absorbed into sea creature bodies.
  • We should equip factories with air and water cleaning filters.
  • We should use alternative sources of energy.