Detrital sedimentary rocks are classified and named principally on the basis of

d. particle size

Detrital sedimentary rocks are rocks are particles that may have derived from physical weathering or chemical weathering. These are those whose material has been transported as solid particles but settled from a fluid, either water or air. They are classified on the basis of their size or grain, They are  also called clastic sedimentary rocks,  

(4,-2)

explanation:

6x+4y=16

-6x-9y=-6

-5y=10

y=-2

x=4

the proximity of water was an advantage to western europe and its culture was able to flourish as a result. trade and travel by sea were easier and safer in historical times.

1. there are no mountains to protect it from the sea

2. and its has wet cool summers and wet, mild winters.