Question

list 5 points on conservation of metals .

Answer 1

Following steps are included in the conservation:
1. cleaning
2. structural consolidation
3. reconstruction of missing parts
4. stabilization
5. protective coating 

Answer 2

5 points on conservation of metal are:
1. we should reuse the metal objects as much as posssible
2. we should recycle the metal objects 
3.we should reduce the use of metals
4.using new techniques in mining to reduce the wastage
5. to use the possible substitute