Im back :D question is: A dam is built on the Columbia River in 1938 and then eight more dams were built between 1940-1950. What happens to the fish populations when dams are built?

Leaves specifically the gas exchange between plants and the environment. while plants undergo photosynthesis, they also partake in cellular respiration. respiration is the process that happens in the leaves of plants.

When plants die fungi breaks them down