In traditional landscaping, leaves are raked off the ground and bagged. In which of the following ways does this practice most significantly disrupt natural nutrient cycling? A. It carries away microorganisms that can perform nitrogen fixation.

B. It reduces the rate of oxygen and carbon cycling via photosynthesis.

C. It prevents carbon, oxygen, and nitrogen from being returned to the soil.

D. It increases the amount of carbon dioxide that is released to the atmosphere.

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.

i think its y= -4x-14