Answer:
A term applied to hard rocks, or <u>igneous and metamorphic rocks</u> that are distinguished from sedimentary rocks because they are typically more difficult to disaggregate. Well cemented sedimentary rocks are sometimes described as being hard, but are usually called soft rock.
Answer and explanation:
Following points should be kept in mind while doing or observing CPR.
1)Rate should be 100-120 compressions per minute.
2)Compression depth should be atleast 2 inches.
3)Push hard and fast.
4)Interruptions of almost 10 seconds
5)Give effective breaths to make the chest rise.
6)Ventilation.
It refers to ow much energy is expanded while exercising.
You check their airway first, then the Heimlich Maneuver, Then if it doesn't work you put in a trachea.