Sedimentary rocks are easily recognized in the field because they?

Sedimentary rocks are a type of rock that form from the accumulation and compaction of sediments over time. These rocks are easily recognized in the field because they occur in layers.

When sedimentary rocks form, they often build up in horizontal layers, one on top of the other. These layers can be seen as distinct bands or lines within the rock. This layering is a key characteristic of sedimentary rocks and helps geologists identify them in the field.

Other types of rocks, such as igneous and metamorphic rocks, do not typically have this layered structure. Igneous rocks form from the cooling and solidification of molten magma, while metamorphic rocks are formed from the alteration of existing rocks under high heat and pressure. These processes do not usually result in the formation of distinct layers like sedimentary rocks.

Therefore, when geologists come across rocks that have clear layers, they can conclude that they are sedimentary rocks. This characteristic makes them easily recognizable in the field.

So, the correct option in this question is Option D: Sedimentary rocks occur in layers.