How can the practice of tillage be harmful to the overall environment? a. it can impact waterways through sedimentation and pollution. b. it is harmful to the soil that is tilled. c. tillage decreases overall crop productivity. d. all of the above

The correct answer is option b, that is, it is harmful to the soil that is tilled.  

The agricultural preparation of soil by mechanical agitation of different kinds like stirring, digging, and overturning is known as tillage. The examples of human-powered tilling procedures using hand tools comprise picking, shoveling, hoeing, mattock work, and raking.  

The procedure of tilling exerts some negative influence on soil, it contributes negatively to the quality of the soil. The process of tillage fractures the soil disrupts composition of the soil and even enhances soil erosion and surface runoff.  

The answer is A. It can impact waterways through sedimentation and pollution

the food storage products of chrysophytes are oils or the polysaccharide laminarin.   formerly classified as plants, the chrysophytes contain the photosynthetic pigments chlorophyll a and c all but the yellow-green algae also contain the carotenoid pigment fucoxanthin.