Answer:
Adaptation of foreign culture.
Step-by-step explanation:
The beauty and value of our historical and cultural heritage's are declining because we are not interested or struggle to protect them. We adopted foreign culture and avoid our our culture which is the main reason for declining historical and cultural heritage. If we have the responsibility and love for our historical and cultural heritage, we will protect it and work for its improvement. For the improvement and growth of our historical and cultural heritage, we have to celebrate historical and cultural events on large scale and tell our next generation about it.