Answer:
1. Compaction occurs where pressure is placed on loosely packed sediment. The volume of the sediment is reduced and water is squeezed out.
2. Cementation occurs when mineral-bearing water circulates among the grains, hardens, and cements the sediment grains together. This process is most effective when lithifying sand and gravel-sized sediments.
Explanation:
Social media and mobile devices may lead to psychological and physical issues, such as eyestrain and difficulty focusing on important tasks. They may also contribute to more serious health conditions, such as depression. The overuse of technology may have a more significant impact on developing children and teenagers.
Answer:
Trenches are not found int he Appalachian mountain province today.
Explanation:
1 is not correct because there is an abundance of metamorphic rocks, which is not weird considering the age of this mountain range.
2 is not correct because this mountain range has been close to intense volcanism during its formation, so it still has some of the volcanic rocks preserved.
3 is not correct because there are a lot of folded and faulted mountain ridges, many of which are visible at the surface today.
4 is not correct because these mountains rose from the ocean, so there are remnants of an ancient floor at places.
5 is not correct because with the erosion over hundreds of millions of years, valleys have been gradually formed at the periphery of this mountain range.
6 is not correct because the top layers of this e range are predominantly made of sedimentary rocks.
7 is correct because the trenches that existed in this area have disappeared a couple of hundreds of millions of years ago, mainly because the area has been gradually moving away from the tectonic boundaries and became an area that is tectonically inactive.
The answer is 2. <span>The fact that mechanized agriculture has replaced manual labor. Hope this helps :)</span>