Which statement describes characteristics of earthquakes occurring along divergent plate boundaries?

a
they are large and occur at shallow depths near the ridge. the plates do not diverge.

b
they are large and occur at shallow depths near the ridge where the plates diverge.

c
they are small and occur at shallow depths near the ridge. the plates do not diverge.

d
they are small and occur at shallow depths near the ridge where the plates diverge.

Atrain travels 74 kilometers in 3 hours, and then 81 kilometers in 5 hours. what is its average speed?

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.

A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.