Generally, the environment: beach/city, weather: warm/cold, historical relevance, religious relevance, economy of said country, technology
Answer:
Shaking your head.
Body posture.
Forming an X with you arms/limbs.
Critical injuries are injuries that can cause a critical decline in a patients condition leading to life threatening complications or disability. Critical injuries can include things like spinal fractures, brain or heart contusions, or open chest wounds (pnuemothorax).
So naturally other small things like papercuts burning a small area of your thumb is not considered critical.
FITT principle: Frequency, Intensity, Time, and Type.
They can increase their exercise from 3 days per week to 5 days per week. They can aim for a further distance during their exercise. They can increase the daily time from 20 minutes into 40 minutes. They can change the exercise from jogging to running.
The answer is A because drug tolerance makes it so you have to take more and more drugs to get the effect you want. Meaning you are more likely to do too much to get your high and overdose.