while hiking near the mouth of the river, malcolm finds a fine grained that break into flat pieces. This an example of what type of rock?

a)magna
b)igneous
c)matamorphic
d)sedimentary

sedimentary

Igneous

The fine-grained rock that breaks into flat pieces that Malcolm found near the mouth of the river is an example of a sedimentary rock.

To determine the type of rock Malcolm found while hiking, we need to consider the characteristics of the rock. In this case, Malcolm discovered a fine-grained rock that breaks into flat pieces near the mouth of a river. Based on these details, the rock's properties are indicative of a sedimentary rock.

Sedimentary rocks are formed through the accumulation and compacting of sediment over time. They can be composed of various materials, including small particles such as silt, clay, or sand. Fine-grained sedimentary rocks often exhibit distinct layering or stratification, which can be seen when the rock breaks into flat pieces.

Therefore, the correct answer is d) sedimentary.