Question

according to the video you just watched, dr. gehling explains the red color of the surface. select why the surface of the sandstone has this red layer? the hot australian sun has colored the desert rocks. shallow water in this region produces red sandstone. due to the mineral crust of the dead organisms.

Explanation:

In geology, the red - coloration of sandstone is often due to iron - oxide (rust) which can be present in various forms. Without further context from the video, we analyze each option. The sun doesn't directly color rocks in this way. Shallow water alone doesn't necessarily produce red sandstone. The presence of a mineral crust from dead organisms can sometimes contribute to rock coloration, but usually, red sandstone gets its color from iron - rich minerals. However, among the given options, the most likely reason based on general geological knowledge is related to the mineral content associated with the environment where the sandstone formed.

Answer:

No correct option provided as none of the given options are typical reasons for red - colored sandstone. But if we had to choose the most reasonable one among them, it would depend on more context from the video. If the video discusses some unique biological - mineral interaction, it could be "Due to the mineral crust of the dead organisms."