Polar ice caps are the coldest place on the earth. The temperature here is very low, always below 0 degree Celsius on an average.
Polar ice caps has no vegetation because:
1. Ice is present on the ground permanently.
2. Water present in the soil remains frozen and thus, unavailable for plants to grow.
3. Cold weather that do not support vegetation.
The given blank can be filled with dinosaur footprints.
In the Precambrian, the sedimentary rocks deposition took place in the Blue Ridge Province of Virginia, however, no fossils have been positively determined from these deposits. The Paleozoic rocks are well documented in Virginia. The occurrences of shallow area deposition were obstructed by subsequent periods of erosion and mountain-building incidents.
The withdrawal of the widespread shallow regions of the Paleozoic left much of the state exposed at the time of Mesozoic and Permian. In central Virginia, fossils of freshwater fish, dinosaur footprints, and insects are found in the rift basin deposits of the Triassic.
Answer:
The first layers of earth are very loose, unconsolidated layers called soil, which is pretty easy to dig into, but as we go deeper we reach the bedrock, which is the hardest part of the soil profile, which is made of hard rocks and matter.This makes it harder to dig more and more deeper.
Explanation:
D genetic drift
Hope it helps you