Which block do you think will slide down the ramp most quickly? Rubber block
Or
Steel block

Please explain why

Iwll give extra points to who gets this for ! what type of reaction is this? ?

The biosphere of the earth is made up of what compound? organic or inorganic?

28. which is not a reason that water is used to store spent fuel rods from nuclear power plants? water increases the speed of the chain reaction in the fuel rods. water protects nuclear power plant workers from the high temperature and radiation of the fuel rods. water acts as a radiation shield to reduce the radiation levels. water cools the spent rods. salts action