Answer:
4 billion years
Explanation:
Scientists have found the oldest known rocks on Earth. They are 4.28 billion years old, making them 250 million years more ancient than any previously discovered rocks. Earth formed about 4.6 billion years ago from a disk of gas and dust circling the sun.
Answer:
Yes.
Explanation:
The duration of hours of the day is longer during the summer and shorter during the winter and this influences the temperature in these two seasons. As the day is longer in the summer, it means that the hemisphere that this summer has more exposure to the sun and therefore has higher temperatures. The opposite happens in the winter, as there is less exposure to the sun, due to the shorter day, which can help in decreasing the time.
Answer:
C Weathering breaks different rocks down into sediment.
D Erosion carries the sediment dawn hill.
A Sediments are deposited in specific places.
E The sediments impact due to pressures.
B The sediments are cemented together forming a sedimentary rock.
Explanation:
- The rock cycle takes place from the igneous rocks that are primary rocks that are eroded and leading to the formation of sediments and watch later on get deposited downhill.
- Their compaction along with the pressure over the period of time leads to the formation and consolidation of sedimentary rocks. This there a product of weathering, transportation, deposition, and cementation.
Answer:
Most major rivers in Southeast Asia seem to flow in the same direction. By studying the physical geography of this region, we can tell that these rivers flow from north to south because the major mountain ranges run from north to south. The rivers formed naturally between them in valleys.
