[Solved] When inspecting the nails for clubbing, which is the normal angle of attachment? A) 45 degrees B) 90 degrees C) 160 degrees D) 180 degrees Continental Weathering: The process by which the surface of the earth's continents is broken down and eroded, often influencing global climate by cycling carbon. Ocean Anoxia: A condition in oceanic environments where there is a severe deficiency or absence of oxygen, potentially leading to mass extinctions or significant ecosystem changes. Silicoclastic Rock: Sedimentary rocks composed mostly of silicate minerals, formed from the accumulation of clastic sediments. Microscopic Organisms: Living beings that are too small to be seen with the naked eye, including bacteria, viruses, fungi, and protozoa, playing essential roles in ecosystems and human health.