Choose two different pieces composed between the years 1000 and 1080s
​

Omg this is s easy for me your answer is false

Need the reasons to solve 

Material safety data sheetswhen working with any type of chemical the should be posted in a conspicuous place in the work areamsdsif a material does pose a health hazard teachers shouldobserve appropriate precautions when they or their students handle the materialmsds are available fromproduct manufacturesmsds sheets must beavailable in shop/science classes at all times