II and III only. The Cambrian Period is the first geological time period of the Paleozoic Era. And the longest unit in geological time is the supereon.
Answer:
Electrons are arranged in layers
Explanation:An atom is solid and the Nucleus is at the center of an atom+ it isn't possible for electrons to form layers
Answer:
fine details such as the wings, legs and other fragile structures are preserved effectively giving us a window into how the preserved organism would have appeared in life. without the presence of amber, we wouldn't be able to examine a majority of small prehistoric organisms.
Explanation: amber is able to preserve a snapshot of the ancient world in ways that other forms of fossilization simple fails to do. while an imprint of a feather could be preserved in rock the actual feather could be captured within amber. Amber also preserves small organisms that otherwise would have been lost to time such as the insects seen in the photo above. And much like the gecko seen below it can show us how these organisms truly appeared in life.
Two things required are water(H2O), carbon dioxide (CO2), and chlorophyll
Answer:
The three main parts of the earth are the crust, the mantle, and the core.
Explanation:
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