Question

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

Answer 1

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.