Question

what rock is this?
conglomerate
granite
marble
gneiss
basalt
shale

Explanation:

Marble is a metamorphic rock that is usually white or light - colored. It has a relatively smooth surface compared to some other rocks like conglomerate (which has visible pebbles), granite (has a more speckled appearance with different minerals like quartz, feldspar, and mica), gneiss (has banded appearance), basalt (is dark - colored and often fine - grained or aphanitic), and shale (is fine - grained but usually has a more earthy and often fissile appearance). The rock in the image has a smooth, light - colored appearance which is characteristic of marble.

Answer:

Marble