Protection against natural calamities and transportation facilities:
Earlier natural calamities like earth quake, tsunami, landslides, floods, famines, floods, etc. led to high death-rate.
Our transportation facilities have become very fast. So, if a natural calamity takes place in any part of the country, then we can provide immediate relief to the affected region from another region. We can now quickly transport basic requirement like food grains, medicines, etc. to the affected region. This has reduced the death-rate.