High concentrations of carbon monoxide kill in less than five minutes. At low concentrations it will require a longer period of time to affect the body. Exceeding the EPA concentration of 9 ppm for more than 8 hours is suspected to produce adverse health affects in persons at risk.
This is true.
For example, the Hillside Apartments was a steel framed construction and was damaged beyond repair after the quake. However, the building next it was wood frame construction and it survived with minor damages.
Another thing to know is that wood can withstand massive earthquakes. Wood construction has some tremendous advantages. Wood is strong,light,flexible and fast.
Hoped this helped! ^.^
Answer:
A reflex that is seen in normal newborn babies, who automatically turn the face toward the stimulus and make sucking (rooting) motions with the mouth when the cheek or lip is touched. The rooting reflex helps to ensure successful breastfeeding.
Explanation:
