Hello,
Cinder Cone Volcanoes usually make up of Lava. These volcanoes are made of lava, not ash. Do not get that mistaken.
- I.A. -
Answer:
A dam that could allow fish to still pass through is a fishway/fish pass its a "fish ladder" that is structured on or around artificial or natural barriers to allow for fishes natural migration and the movement for potamodromous species.
Cyanobacteria convert nitrates from the water into nitrogen gas (N2<span>) that is released into the atmosphere</span>
