List three organisms which cause crop disease

Which mantle is under the crust the upper mantle or the lower mantle i think it's upper let me know if i'm right

Which would happen if more forests were cut down? a. the nitrogen cycle would be stopped b. nitrogen would be fixed by bacteria more quickly c. the amount of co2 in the atmosphere would increase d. fossil fuels would build up in the soil c the amount of co2 in the atmosphere would increase

Diffusion and osmosis are forms of passive transport