5 mass extinctions
Use a Seismograph.
It is a seismograph
when you burn fossil fuels you get greenhouse gasses but that causes global warming so that causes two damages to the earth and enviorment.
Evidence of changes in Earth's magnetic field is found in rocks through the study of their magnetic minerals, which can record the direction and intensity of the magnetic field at the time of their formation. When volcanic or sedimentary rocks cool or are deposited, iron-bearing minerals align with the Earth's magnetic field, preserving a "fossil" record of its orientation. This phenomenon, known as paleomagnetism, allows scientists to detect shifts in the magnetic poles and changes in the field's strength over geological time. Analyzing these magnetic signatures helps reconstruct past continental movements and understand the dynamics of Earth's magnetic field.
I would think it would be low tide.
A fossil record is a historical sequence of life indicated by fossils found in layers of Earth's crust.
years
The history of the Earth and the history of life on Earth.
years
years
years
a. marine invertebrates b.land plants c.reptiles d.prokaryotes
The fossil record indicates that life on Earth has undergone significant changes over geological time, showcasing periods of both explosive diversification and mass extinctions. It reveals that biodiversity has dramatically increased, particularly during events like the Cambrian Explosion, when many major groups of animals first appeared. However, the record also highlights repeated declines in diversity due to catastrophic events, such as asteroid impacts and volcanic eruptions, which led to the extinction of numerous species. Overall, the fossil record underscores the dynamic and ever-changing nature of life on Earth.
I don't know by fossil record but I have a book called walking with the dinosaurs and it said 220 million years ago
fossil record geologic time scale
The fossil record provides evidence about the history of life and past environment on earth. The fossil record also shows that different groups of organism have changed over time.
1. When that animal/plant lived. 2.What killed that animal/plant.