The grill spaces on a helmet are small in order to prevent objects to enter inside the helmet. This small grill spaces on the helmet protect the face from very small as well as large objects. The main reason for making grill spaces small on the helmet so that we prevent the entering of the ball and avoid injury of the face so that's why we can say that grill spaces are small on the helmet.
Natural disasters can be split in three categories: hydro-meteorological disasters, geophysical disasters and geomorphologic disasters. i hope this helps
Must be remembered that flexion at the knee results in moving the lower leg posteriorly, unlike the upper limb where flexion of the elbow results in anterior movement of the forearm.
