in a section of a canyon, scientists have found fossil remains of several different groups of organisms…

in a section of a canyon, scientists have found fossil remains of several different groups of organisms. which of the following is usually most helpful in determining the age of these fossils? a the size and color of the fossils in comparison to the surrounding rock b the depth of the rock layer in which the fossils were found c the amount of surface area the rock layer in which the fossils were found d the type of plant fossils found in the vicinity of the canyon

in a section of a canyon, scientists have found fossil remains of several different groups of organisms. which of the following is usually most helpful in determining the age of these fossils? a the size and color of the fossils in comparison to the surrounding rock b the depth of the rock layer in which the fossils were found c the amount of surface area the rock layer in which the fossils were found d the type of plant fossils found in the vicinity of the canyon

Answer

Brief Explanations:

In geology, the principle of superposition states that in undisturbed rock - layers, the oldest layers are at the bottom and the youngest are at the top. So, the depth of the rock layer where fossils are found is a key factor in determining their age. The size and color of fossils compared to surrounding rock (A) are not reliable for age - determination. The surface area of the rock layer (C) has no relation to fossil age. The type of plant fossils nearby (D) is less relevant than the rock - layer depth for general age - determination of fossils.

Answer:

B. The depth of the rock layer in which the fossils were found