Answer:
sandstone will faster because it is softer than granite
The characteristics of agar that makes it a useful solidifying agent for growth media is it is unable to be metabolized by most microorganisms. Agar is a common solidifying agent for a culture medium; a complex polysaccharide derived from a marine alga - long been used as a thickener in foods such as jellies and ice cream. Agar has some very important properties that make it valuable to microbiology, and no satisfactory substitute has ever been found. A small number of microorganisms can damage agar so it remains solid. Also, agar liquefies at about 100°C which is the boiling point of water and at sea level remains liquid until the temperature drops to about 40°C. For laboratory use, agar is held in water baths at about 50°C. At this temperature, it does not injure most bacteria when it is poured over them. As soon as the agar has hardened it can be keep warm at high temperature approaching 100°C before it again dissolves and is particularly valuable when thermophilic bacteria are grownup.
The units used to measure cell size is the <span>micrometer. It is the most common </span>unit to measure cell size.
C.) <span>All the electrical energy is transformed to light energy and heat energy.
[ Remember, the first law of Thermodynamics,Energy can neither be created nor destroyed ]
Hope this helps!</span>
According to the latest study, Homo sapiens were found to expand in Africa more than 100,000 years and the fossil included skulls, jawbones, femur, humerus with a mixture of a modern human and more ancient feature. Homo sapiens were the most numerous mammal and the only existing member of genus Homo.