Answer:
Metamorphic rock
Explanation:
metamorphic rock formed when limestone is exposed to high temperatures and pressures. Marble forms under this condition because the calcite forming the limestone recrystallises forming a denser rock consisting of roughly equigranular calcite crystals.
Answer:
Presence of acidic oxides and other chemicals in air can change the PH value of the Rain.
Explanation:
Generally, PH value of rain remains 5.0. But when the air composition changes due to sulfur dioxide or nitrogen oxides released from automobiles and coal based power plants, the combination of these with rain water makes rainy water more acidic. This results in change of PH value of Rain.
Answer:
B. inhibit the germination of Clostridium botulinum endospores.
Explanation:
Nitrite is used in meat curing, which is produced commercially as sodium nitriteand it is has been responsible for the preservation and characteristic color/ flavor of the cured meats. Cured meat products contain curing salts, usually salt (sodium chloride) and either nitrites or nitrates. The function of nitrite in processed meat is : (1) to stabilize the color of the lean tissues. Sodium nitrite, is most commonly used for curing (although in some products such as fermented ones, sodium nitrate is used too, because of the long aging period); pocessed meats like as bacon, ham, sausages etc.
These compounds help to prevent the growth of harmful bacteria. add a salty flavor. Clostridium botulinum produces heat-resistant endospores that are commonly that are able to survive under adverse conditions. Clostridium botulinum is commonly associated with bulging canned food; bulging, misshapen cans are due to an internal increase in pressure caused by gas produced by this bacteria.
