Answer:
Due to the waves that happens beneath the water
The archaea and bacteria domains are both entirely composed of small, single-celled unicellular organisms.
Unconsolidated, granular materials such as gravel and sand will support maximum slope angles of about 33 to 35 degrees hence, angle of repose is the name for this maximum slope angle
The angle of repose is the angle formed by the plane of contact between two bodies when the upper body is just on the verge of sliding: the angle whose tangent is the coefficient of friction between the two bodies.
tan-1(2h/d) - where h is the height of the powder pile and d is its diameter Multiply the height by 2 and divide the result by the diameter using a scientific calculator. Then, press the inverse tan key, or tan-1, to get the result you just calculated. This will provide you with the angle of repose. The angle of repose is critical in the design of particulate material processing, storage, and conveying systems. The angle of repose is low when the grains are smooth and spherical.
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The correct option is COAL.
Fuels are considered to be harmful to the atmosphere because of the carbon dioxide and other gases which are released into the atmosphere when these fuels are burned. Out of all these gas pollutants, carbon dioxide is the major pollutant of the atmosphere. Coal is considered to be the most harmful to the atmosphere because, its carbon dioxide content is much higher that that of the other fuels.<span />
Cyanobacteria had a role in the evolution of eukaryotic cell, more precisely their organelles. It has been shown that chloroplast, cell organelles found in some eukaryotic lineages, which are specialized in performing the photosynthesis evolved from cyanobacteria through the process called endosymbiosis. In this process, photosynthesizing cyanobacteria was engulfed in some ancient eukaryotic cell. Eukaryotic cells have evolved from the endosymbiotic events.
<span>By producing and releasing O2 (as a byproduct of photosynthesis), cyanobacteria are thought to have converted the early oxygen-poor, reducing atmosphere into an oxidizing one. This caused the Great Oxygenation Event which dramatically changed the Earth's life forms and led to the formation of multicellular organisms.</span>