How does sharecropping benefit the owner of the land ,but not the workers?

 In Sharecropping is said of the farmer who works on land that belongs to someone else. In general the sharecropper takes care of all the work, and shares with the landowner the result of the production. The landowner provides the land, the house, and sometimes a small plot for the private cultivation of the farmer and his family. It also provides farm equipment and animals to help with the work. Fertilizers, insecticides and cash advances may occasionally be provided by the landowner.

For the owner of the land the waste is almost nothing,, they can help or not, the gain are big, compared to all of the workers, that are providing much.

i have to go with a for this one

explanation:

allergens: overstimulate the nerve system

neurotics: attack nerve cells

mutagens: damage or otherwise alter dna sequence

generators: cause defects during growth and development  

carcinogens: cause unchecked cell growth

i hope you get the idea according to me these are the effects that happened.