Question

1. which human activity has had a significant impact on the biodiversity of north american forests?

a. deforestation
b. marine pollution
c. urban sprawl
d. conservation efforts

Explanation:

To determine the human activity impacting North American forest biodiversity, we analyze each option:

• Option a: Deforestation directly removes forest habitats, destroying ecosystems and reducing biodiversity in North American forests.
• Option b: Marine pollution affects ocean ecosystems, not forest biodiversity.
• Option c: Urban sprawl impacts urban and nearby areas, less directly on forest biodiversity compared to deforestation.
• Option d: Conservation efforts aim to protect biodiversity, not harm it.

So deforestation (option a) has a significant negative impact on forest biodiversity.

Answer:

a. Deforestation