Communities is all the populations living in an ecosystem at the same time. A predator-prey relationship is an organism that eats another organism.
Answer:
a lithium atom (Z=3, A=7 AMU) contains three protons (found from Z), three electrons (as the number of protons is equal to the number of electrons in an atom), and four neutrons (7 – 3 = 4).
Explanation:
Answer:
A
Explanation:
The ability to combine with oxygen is not a physical property it is a physical change i believe.
boiling point is a property as well as conducting electricity and hardness
V=d/t
v=18m/3sec
v=6m/s
or 6 meters per second.