Answer:
The elecron cloud is located around the nucleus.
The electron cloud contains negitivley-charged electrons.
A higher effectivly nuclear charge causes greater attractions to the electrons causing them to come closer.
The faster a electron goes the farther away it will go.
There was a time when we were very physically active, but now we rely on devices to do most of our work. The changes in our behavioral patterns and adaptations that are caused by these technological advances could prove to be the primary driving forces behind the next stage of evolution for our species.
An overlap in their niches
Mangrove trees can provide safety and shelter to many juvenile fish and small creatures. They also help filter out pollution.