Preserved footprints left behind by animals are called ichnites.
Answer: Andrew's scientific theory was that technology would someday be the world's main resource.
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Hi
1. Lithosphere
2. Hydrosphere
3.atmosphere
4. Biosphere
The lithosphere/geosphere is made of the earth's core, the mantle, crust, ocean floor,mountains, sand, etc.The hydrosphere is made of everything water such as oceans, rivers, lakes, rain, and snow.The atmosphere is made of gasses such as oxygen, and hydrogen.Finally the biosphere is all that has life such as plants, animals, people, insects, etc.
Answer:
It's a deletion, a loss of one or more nucleotides