Question: What Is The Name Of Sediment Whose Size Is Between 1/16 Mm And 1/256 Mm? O Gravel O Sand Mud Silt O Clay A Clay Mineral Is Always A Clay Particle O True O False A Clay Particle Is Always A Clay Mineral O True O False Mechanical Weathering And Chemical Weathering Always Occur Separately True O False The Most Important Agent Of Chemical Weathering Is …

What is the name of sediment whose size is between 1/16 mm and 1/256 mm? O gravel O sand mud silt O clay A clay mineral is always a clay particle O True O False A clay particle is always a clay mineral O True O False Mechanical weathering and chemical weathering always occur separately True O False The most important agent of chemical weathering is : O carbon dioxide O carbon monoxide O carbonic acid oxygen O nitrogen That rock is classified as a quartz sandstone as we will see. Quartz though is grayish and this rock is red. What makes it red is…. O its grains O its pores its cement O its matrix O none of these That rock is classified as a quartz sandstone as we will see. In the previous question you were asked to identify what component made the rock red. What I am asking you now is what is that component atcually is, whatever your choice was, quartz O K-feldspar O hematite O a clay mineral O calcite Given the same volume unit, that can be broken down or not (like in the picture), what is the relation between the size of the particle and the area of exposure to weathering agents in a sediment? the bigger the particle the greater the area exposed the smaller the particle, the smaller the area exposed the bigger the particle, the smaller the area exposed O the exposed area does not change with the size of the particle O it is impossible to tell from this figure What are the three most common sedimentary rocks on Earth’s surface? O sandstone, shale, table salt granite, sandstone, shale O limestone, sandstone, shale granite, shale, limestone O table salt, limestone, sandstone Slide 35 of the Weathering and Soils powerpoint (http://grippo.pazsaz.com/WeatheringSM.pdf) shows some properties of clay minerals Among the following, which is true? clay minerals are rounded O clay minerals are big in size and visible O clay minerals hold on to charged particles O clay minerals are neve found in rivers O clay minerals are a component of gravel Copyright e The Companies. Personved for reproduction or deply Clay mineral Water molecule (H20) Clay minerals are made by silicon tetrahedra True False A bauxite is rick in: O Fe OK Ο ΑΙ OCa O Na a pH = 6.8 is more acidic than a pH = 7.2 True O False Erosion of a sediment requires more energy than transportation of the same sediment True O False A source area is an area where sediment is produced (the source of sediment, usually a mountain) In general, fine particles (small size ones) are found …. O very close to the source (in a mountain river) O very far from the source (where the river enters the ocean) uniformly scattered along the course of the river randomly scattered along the river none of these Which of the following is the most sorted sediment? a mixture of gravel and sand in a mountain river O some mud with shells on a lake bottom O sand at a beach along the coast of the Gulf of Mexico O sand and mud in a swamp O a sand in a plain, close to a mountain the concept of maturity applies to … all clastic sediments (gravel, sand, silt, clay) O gravel only sand only O silt only O clay only Which of the following is a high-energy environment? o the open ocean O a coastal shallow water ocean O a lake O a lagoon O a pond We have hinted at the fact that chemical sedimentary rocks form because when water evaporates, like in Death Valley, ions cannot be hydrated by water molecules anymore, so they get together, forming crystals. The opposite is true, when you put a salt in water, it slowly dissolves. This is true for most alts, including table salt. But not necessarily for calcite (calcium carbonate).Who becomes a major actor in the formation/dissolution of calcium carbonate (but not for other salts?) oxygen O carbon dioxide O iron nitrogen O quartz