Answer:Grief can be exhausting and this may weaken the immune system, making people prone to colds and illness.
Explanation:It is common to cry a lot, and feel incredibly sad. Some people never cry at all, but this doesn't mean they are not grieving. There is likely to be initial shock and disbelief as well as a range of feelings, including numbness, a sense of unreality, anger, loneliness or guilt.
In the above examples, the only one that is not an example of speed is the option:
"6 miles per hour north". A speed doesn't have a direction added to it. If a statement has a direction added to it, it's velocity, not speed. Speed is a scalar quantity. In other words, it is the rate at which the object covers the distance. Speed does not care about direction. It is also not aware of direction. Velocity, on the other hand, is aware of direction and of speed.
There are 4 calories for each gram of carbohydrate
There are 9 calories for each gram of fat
There are 4 calories for each gram of protein
