Which of the following would be an important observation that could you identify a metamorphic rock? choose one: a. the presence of calcite b. sand grains that break along grain boundaries c. the arrangement of mineral grains into a foliation d. large crystal size

An important observation that could help you identify a metamorphic rock is c. the arrangement of mineral grains into a foliation.

Explanation:

Metamorphic rocks can be identified by the foliation which is the layered characteristics of these type of rocks. The process occurs during recrystallization resulting in a foliated rock with bands of different colors depending on the minerals that form them.

northern hill zone (nhz)

western himalayan regions of j& k (except jammu and kathua distt.); h.p. (except una and paonta valley); uttaranchal (except tarai area); sikkim and hills of west bengal and n.e. states

north western plains zone (nwpz)

punjab, haryana, delhi, rajasthan (except kota and udaipur divisions) and western up (except jhansi division), parts of j& k (jammu and kathua distt.) and parts of hp (una dist. and paonta valley) and uttaranchal (tarai region)