I would think because there are animals that live in the freshwater and also the animals that use the freshwater to travel. Also the pollution from people littering and all that kind of stuff.
Answer:
The atomic model is our understanding of how the atom is structured. At one point in history, people believed that any substance was simply made of that substance and would retain that property no matter how small a quantity it was reduced to. Later, some argued that all matter was made of tiny particles called atoms. While this is correct, later researchers found that even the atoms were made of smaller particles called electron, protons, and neutrons. More recently, scientists have discovered quarks, tiny particles that makeup protons and neutrons.
Answer:
Este presenta características o dimensiones únicas, es decir, no se parece a ningún otro hueso,debido a esto lo ubicamos en la clasificación de huesos irregulares.
Explanation:
Posición del atlas (se muestra en rojo). El atlas es el nombre que recibe el hueso más alto de toda la columna vertebral, siendo este la primera vértebra cervical (C1).
The rock is heavy because the mass changes from 10.0kg to 100.0kg in 3.24 seconds