Identify the function of two endocrine glands.

Pituitary gland: Responsible for growth and reproduction, it secretes and stores hormones and influences how other glands act.

Adrenal gland: It’s responsible for producing certain steroid hormones, including aldosterone and cortisol.

It's a vague description of the two.

it’s lava came from an explosive eruption

igneous rocks are formed by solidification of cooled magma (molten rock), with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.  

the composition depends on the source magma. there are almost a thousand types of composition found till now.  

hope this