Granite forms when magma slowly cools within Earth’s crust. Basalt forms when lava cools on Earth’s surface. What do granite and basalt have in common? Choose the best answer and explain your thinking.
A. They are kinds of igneous rock.
B. They are not made up of minerals.
C. They are identical in color and texture.
D. They are made up of layers of sediment.

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.

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called