A blue line indicates that there is water running through the valley. If there is not a blue line the V pattern indicates which way water flows.
I believe the answer is included providing nesting cavities for breeding groups. This would increase the abundance and diversity of other bird species in the forest. Managing the forest would mean a lot more habitat for the birds to live in and procreate. This would result to an increase in birds.
Answer:
C.
Explanation:
Ecosystems like wetlands can break down pollutants and purify water. Soil formation is caused by primary succession in ecosystems. Never heard of hellstle sources so sorry if I got this wrong.
