Walking along a dry river bed,you find a conglomerate rock.What can you say about the rock's relative age?
A)The rock formed in place,at the river bed.
B)The rock and mineral fragments that make up the rock are older than the actual rock.
C)The rock is relatively young since it contains lots of small rock fragments.
D)The rock and mineral fragments that make up the rock are younger than the actual rock.

Question

Quizplus · Accepted Answer

Conglomerate rocks are formed from the accumulation of rock fragments, which are typically older than the actual rock. The fragments can come from various sources, such as erosion and weathering of nearby rock formations. Therefore, the conglomerate rock found in the dry river bed is likely to be older than the fragments it contains. Option A can be ruled out since it implies that the rock formed in the current location, which is unlikely if it was found in a dry river bed. Option C is not necessarily true as the age of rock is not necessarily determined by its size. Option D is also incorrect as it implies that the fragments are younger than the actual rock, which contradicts the formation process of conglomerate rock.

Walking Along a Dry River Bed,you Find a Conglomerate Rock