Radon _________________

question 38

Multiple Choice

Radon _________________.

• A) in the atmosphere limits the availability of sunlight for plants
• B) contributes to the breakdown of the ozone layer
• C) is formed by the breakdown of the ozone layer
• D) may cause lung cancer when inhaled
• E) binds with hemoglobin, preventing binding with oxygen

---

Definitions:

Archegonia

The female reproductive structure found in ferns, mosses, and some conifers, where fertilization of an egg occurs.

Fiddleheads

The furled fronds of a young fern, harvested for use as a vegetable.

Vascular Tissue

Plant tissues that are involved in the transportation of water, nutrients, and sugars throughout the plant, comprising xylem and phloem.

Pteridophytes

Non-flowering plants that reproduce and disperse via spores, including ferns, horsetails, and clubmosses, distinct from seed plants in their lifecycle.