Through which process is fertile soil renewed A. The water cycle
B. Reproduction
C. Precipitation
D. Nutrient cycling

If steel is more dense that lake water, why can a boat float

Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?

What is the major limitation to the light microscope?