Primary producers i believe
To find the neutrons you add the mass number and the atomic number for neutrons
Hope this helps
-Zayn Malik
Density=mass/volume
Data:
mass=890 g
volume=100 cm³
Density=890 g/100 cm³=8.9 g/cm³
answer: the density of the copper is 8.9 g/cm³
I would say letter D.
A is biology.
Ecology has to do with distribution of animals.
