Multiple choice

What is lichenometry used for?

  1. To determine the extent of pollution in the air

  2. For determining the age of rocks

  3. To extract coloured components from lichens

  4. In treating certain animal diseases
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Lichenometry is a technique used to determine the age of exposed rock surfaces based on the size of lichen thalli. 

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