A makes the most sense, though D could actually be an Ok reason, the other two aren't reasonable, a fire safety action? The door would be better open in a fire emergancy, it makes a quicker escape
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.
Answer: The answer is C
Explanation: Causation is the cause of something happening and C is a perfect example. If the news did not spread, the rescuers would have not came to help.
You need sodium hydroxide, to add to the solution which should "buffer" the pH levels.
