Does anyone listen to the wombats its important

Heyaas we all know that history is the most important without it we cant solve anything. i had never read any history thats why i dunno know about any past culture.we can read it via wikipedia. u

1.    d. all of the above2.    c. increase the iso setting3.    true4.    true5.    false

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