Ultiple Choice
Soils are made up of a mineral portion, an organic portion, and air and water. What are the
three mineral components of soil? Check all three.
clay
bits of plant material; dead organisms
silt
sand

Three mineral components of soil are bits of plant material, dead organisms and silt particles.

Explanation:

Minerals that is present in the soil comes from the decomposition of dead bodies of plants and animals. Some minerals also comes from the surrounding rocks.

Silt is produced from mineral rock and its size is larger than clay and small than sand particles. The minerals comes from the above sources is utilized by the plants.

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.

true is the final answer!