Which phrase describes a sill? A. fills in valleys and rivers
B. is a hardened magma intrusion
C. cuts vertically through older rock layers
D. is built up by numerous eruptions over thousands of years

The answer is B. is a hardened magma intrusion

(edge2020)

Hope this helps!

~ V.

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.

silty loam

hope this