nuclei
physical structure is geology and geology is a movement in the earths crust which is also physical structure.
Earth's biodiversity is the variety of life forms present on the planet. Classification is the process of organizing these life forms into groups based on their characteristics. By classifying organisms, scientists can better understand and study the vast array of species that contribute to Earth's biodiversity.
Because of the study of seismic waves from earthquakes
All of the earth's layer are present inside the atmosphere. The ozone layer is situated in the stratosphere.
The days would be longer
Oxygen (O2) was not present in early Earth's reducing atmosphere. It only became abundant in the atmosphere due to the photosynthetic activity of cyanobacteria and other early organisms.
living organisms - study island answer (:
Archaebacteria share genetic similarities with Earth's earliest organisms, suggesting a common ancestry. They thrive in extreme environments similar to those of early Earth, indicating they may have adapted and survived in these conditions for billions of years. Their simple cellular structure and metabolic pathways resemble those thought to be present in the earliest life forms.
Techtonic plates
geologist study the earths structure.
Geology
mantle
physical structure is geology and geology is a movement in the earths crust which is also physical structure.
The element "Oxygen".
10937437before christ
three percent of all the earths water is fresh water
Earths Outer Structure.