What are the weathering and erosion factors that affect the pyramids?

According to geologist Robert Schoch, PhD, the serious erosion on the enclosing walls of the Sphinx were formed by centuries of heavy rainfall, which weather hasn't been present at any point during the currently accepted time-frame within which the Sphinx was carved.

The Pyramids complex in Giza consists of three main pyramids in addition to the famous Sphinx and small queen’s pyramids. Recently, the pyramids of Cheops (Khufu), Chephren (Khafre) and Mykerinos (Menkaure) on the Giza plateau have been threatened by a rising groundwater table resulting from water leakage from the suburbs irrigation canals, and mass urbanization surrounding the Giza pyramids. The pyramids at Giza suffer from a lot of Geo-environmental and structural problems. The main objectives of this study are (1) to assess the current status of the preservation of this unique and high valuable archaeological site, (2) to analyze the various actions that cause the destruction of the pyramid complex, in particular the weathering activities and strong seismic event, and (3) to determine the geochemical and engineering properties for construction materials using different types of tools and advanced analytical and diagnostic techniques. Structural stability analysis requires good assessment of present conditions of major materials used such as stones and structural mortar. The paper shows a thorough analysis of the current condition of the Great Pyramids at Giza. The work includes a discussion and analysis of the natural character and source of the pyramids building stones, geological context, damage survey, petrographic investigation, and physical and mechanical characterization of the stones and structural mortars, by means of laboratory and in situ testing. The results are displayed, described and analyzed in the paper in the context of potential threats to the monuments.

answer; ///i believe that the correct answer is (b); ///the candidate must be a native born american citzen;

abraham was promised great blessings by god, both to himself and his family, including all of his descendants. those blessings are called the abrahamic covenant.

the abrahamic covenant bible story has three main features:

1. the promised land of canaan (gen 12: 1) (gen 15: 7).

2. the promise of offspring to a 75-year-old childless abraham (genesis 12: 2) (gen 15: 4-6) (gen 17: 6-8).

3. the promise of blessings and redemption to abraham and the families of the earth through him. (genesis 12: 3).

finally, god gave abraham the rite of circumcision as the specific sign of the abrahamic covenant (genesis 17: 9–14).