There are 7 crystalline systems.
<span>triclinic, monoclinic, orthorhombic, tetragonal, trigonal, hexagonal, and cubic.</span>
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.
Suspesnsion is the correct answer
The correct letter answer is A or C. Choose whichever one you want. I think it's C, but you can consider A also. :)
