Which are the newest rocks? gneiss, granite
basalt
beach and estuarine deposits
siltstone, shale, sandstone, conglomerate

Beach and estuarine deposits , Siltstone, shale, sandstone, conglomerate

Explanation:

Sedimentary rocks are considered to those of the recent origin and recent deposition of the sediments and they include the silt and the sandstones and the conglomerates etc. And they have a lower density ad these rocks are thus formed by the eroded fragments and they have a conglomerate.

Ithink d would be correct

Answer barren with few trees, in the northern hemisphere;