Why Are Lichens a Good Indicator of Environmental Quality

question 14

Multiple Choice

Why are lichens a good indicator of environmental quality?

• A) If the soil is polluted, they cannot produce roots.
• B) They cannot excrete absorbed toxins.
• C) They cannot absorb toxins.
• D) If the air is polluted, they cannot get enough sunlight for photosynthesis.
• E) Toxins inhibit their reproduction.

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Definitions:

Cost Model

An accounting method that values an asset based on the amount spent to acquire it minus any depreciation.

Dividend Income

Income earned from owning shares in a company, paid out from the company's earnings to shareholders.

Common Shares

Equity securities that represent ownership in a company, entitling shareholders to vote and typically to receive dividends.

Other Income

Revenue from non-core business activities, including interest, dividends, or any other non-operational income sources.