What toxic element is commonly used in rechargeable batteries that can contaminate soil and water if disposed of in the trash?
a
cadmium

b
hydrogen

c
iron

d
lithium

lithium

Explanation:

Very toxic element that can contaminate and corrode items it comes into contact with.

Lithium

Explanation:

This element is also used in non-rechargeable batteries. This element is very toxic and can harm the environment if not disposed of correctly.

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.