A scientific law only states that an event occurs true or false

Which of the following is not a good technique for managing used oil? a) have specific, labeled catch pans available for technicians who are collecting oil b) spills in your shop and any releases on pavement or outside should be poured down a drain c) do not use oil containers for antifreeze or other non-similar fluids d) be prepared for oil spills with the proper absorbents

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?

What is the mass of 0.46 mil of mgcl2