our water pipes, and the led in some water sources.
Answer:
Tundra, taiga, coral reef, desert.
Explanation:
Answer:
Anaerobic processes do not require oxygen.
Explanation:
Aerobic processes are the ones that do require oxygen.
The geologic time scale is a system of chronological dating that relates geological strata to time, and is used by geologists, paleontologist, and other Earth scientists to describe the timing and relationships of events that have occurred during Earth's history. Hope I helped!