Answer:
Crust, mantle and core.
Water availability.
Volcanic eruptions.
Explanation:
The main similarities about Early earth and Modern earth is their layers of soil such as crust, mantle and core means that the both Early earth and Modern earth are made up of these three layers. At that time water is present in huge amount while on the other hand, in Modern earth water is also present in large amount as compared to land. Volcanic eruptions occurs in both early and Modern earth.
Answer: population, community, ecosystem and biosphere
Explanation:
In ecological organization, the smallest level is Organism level (a unit representative).
Population level comes next after the Organism level. Population refers to the total number of organisms of the same species inhabiting a geographical area.
Then, Community level comes next after population level. A refers to group of plants, animals and other living components functioning in their non-living environment.
Ecosystem level is the next after community level. An ecosystem refers to the aggregate of living organisms interacting with the non-living components in an environment.
Lastly, Biosphere is the highest level in ecological organization. Biosphere refers to the part of the earth where living organisms occupies.
