Paris's industrial areas are located outside city limits.
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Answer:
The Carboniferous era had large deposits of coal matter in the soil. However there was absence of decomposers which gave rise to increased accumulation of organic matter in the soil.
Decomposers make use of oxygen to breathe in the soil due to their existence as animals and not plants. They inhale oxygen and give out Carbon dioxide.
Absence of these decomposers mean increased level of oxygen due to its non usage and reduction in CO2 which is the end product of respiration for the decomposers.
Answer: The order of the stages of primary succession as seen at glacier bay are Pioneer, Dryas, Alder, and Spruce stages.
Explanation:
Primary succession is the process that plant species use to colonize a sterile habitat. The first living organisms, the pioneer species are hardy species, for example moss that are able to survive in any habitat. These change the unfavorable environment (lava, rock) to soil.
In Glacier bay, Alaska, the dryas came next, providing the soil with Nitrogen, then Alders which maintains the nitrogen content in the soil. This is followed by spruce trees which grow in the the shade of the alder
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Answer:
The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants. The law of conservation of mass is useful for a number of calculations and can be used to solve for unknown masses, such the amount of gas consumed or produced during a reaction.
