Sandstone is made of many small grains of sand cemented together. which term names the process that forms sandstone? a. accretion b. fire formed c. lithification d. clastics

Will you chech and finish these for me, because i am stumped with them.

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.

An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg.how much energy e must be supplied to the device? express your answer in joules.