The answer is 1, have an amazing day :)
1 the youngest rock is layer d and the oldest is a 2 layer h is magma springing to the top
3 tectonic shifting
4 mostly techtonic shift but after they formed the mountains
5 layer f
6 lava
Body substance isolation (BSI) is generally the preferred method of isolation because it gives a good amount of protection against infection.
Infection can be spread via body substance so by isolating it you can prevent it. Patient out of hospital disease mostly is unknown and it's better to do a stricter precaution. In a case of new disease emerge, BSI practice can delay the spreading of disease.
