What term in astronomy describes the balance between the force of gas/radiation pressure and the force of gravity?

Driving on the highway can lead you to the hypnosis of a road, a condition of drowsiness or ignorance, you can avoid this condition

The personal identification number that students need to apply for federal student aid

Healing after the death of a loved one is most difficult when: a) the bereaved is not allowed to mourn in the way he or she wishes b) the death is a long, protracted one c.) a period of grief has already elapsed d) no other mourners are present