Question

why do humans purposely introduce non - native species to an ecosystem?
to reduce the number of pests
as decoration
as ground cover
as a new food source
all of the above

Explanation:

• Non - native species can be introduced to control pests (biological control).
• Some non - native species are aesthetically pleasing and used as decorations.
• Certain non - native plants can serve as ground cover.
• New food sources can also be a reason for introduction.

Answer:

All of the Above