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Which of the following plant is used as bio-indicator to monitor the health of the environment?
1. Ephemenais
2. Snake plant
3. Fern
4. Lichens

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Correct Answer - Option 4 : Lichens

The correct answer is Lichens.

  • Lichens are used as a bioindicator to monitor the health of the Environment.
  • Lichens need clean air to flourish and thus are an indicator of the good air quality in the surrounding area.
  • Bioindicators can be plants, animals, or microorganisms
  • Living organisms are often used to indirectly measure levels of chemicals in their environments.
  • Some micro-organisms produce stress proteins when exposed to certain pollutants.
  • By measuring the stress protein the number of pollutants in the environment can be measured.

Snake plant
  • It is a common houseplant.
  • Sansevieria trifasciata is native to Asia and Africa.
  • Known for their ability to improve air quality.
  • It's a succulent which can grow from 6 inches to several feet. 
Fern
  • Class: Polypodiopsida
  • Ferns are non-flowering plants.
  • Commonly reproduce by producing spores.
  • Ferns have roots, stems, and leaves similar to flowering plants.

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