Answer: False
Explanation:
Just because an environmental agent is not harmful does not mean that it is beneficial therefore not all non-harmful environmental agents that a pregnant woman ingests aid in the development of the fetus.
This is where the Placenta comes in. It filters out the agents and nutrients that are not needed and passes only the relevant ones to the fetus thereby ensuring that not all non-harmful agents pass through.
<span>evidence for copper alloy or bronze casting in Sub Saharan Africa.</span>
The process is the difference in atmospherical pressure where air moves from higher to lower pressure area creating winds of various speeds
Standing wave - A standing wave is a wave that remains in a constant position.
