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3 years ago

How was the knowledge of ecological succession applied to the reclamation of land damaged due to mining?

2 answers:

6 0

After mining, to reclaim the land, the depression is filled with rocks then the top is filled with loosely graded soil. Introduction of early succession plants is important before big trees can grow. The early succession plants help in the breaking down of the rocks into soil hence making the topsoil deeper to support trees.

Darina [25.2K]3 years ago

4 0

Answer:

In general, it is noteworthy to mention that for the restoration of land damaged by mining, a series of activities focused on its recovery can be followed: finish with what is causing the affectation; reduce the effects that are being produced by mining; as far as possible bring the land to conditions similar to those previously; incorporate biotic or abiotic elements that were in the affected lands.

Explanation:

The capacity for the successful restoration of an ecosystem affected by mining before and after the problem, it is necessary to know all the factors that were originally, such as hydrology, geomorphology and soils. It is necessary to know the causes that generated the problem, the composition and the functioning of the ecosystem before the affectation, the information about the regional environmental conditions. Finally, it is necessary to know the native biota that is required for restoration.

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Carolus Linnaeus Group of answer choices developed theories of natural selection. was a proponent of evolutionary change. establ

padilas [110]

Answer:

1- was a proponent of evolutionary change.

2- established a binomial system of classification for plants and animals

Explanation:

Carolus Linnaeus was a Sweden naturalist that is considered to be the creator of the modern taxonomy. He created a dichotomic system to classify species, in which species are fixed entities without phenotypic modifications across time, this concept being contrary to Darwin's ideas. Linnaeus published his nomenclature botanical system in the book "Species Plantarum", which is nowadays a reference book for plant nomenclature.

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3 years ago

Which scientist first said that planets travel in fixed paths or orbits

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3 years ago

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Which organism is an example of a producer ?

NikAS [45]

Answer:

Good examples include cyanobacteria and green and purple sulfur bacteria. Producers are organisms that are capable of producing their own food using water, light and other chemicals. They are also known as autotrophs.

Explanation:

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At a PO₂ of 70 mm Hg and normal temperature and pH, hemoglobin is ________% saturated with oxygen. At a PO₂ of 70 mm Hg and norm

Arturiano [62]

Answer:

D) over 90

Explanation:

As we know, hemoglobin is the protein found in red blood cells that is in charge of oxygen transportation, and the relation between the percentage of oxygen that binds to hemoglobin and the partial pressure of oxygen in the blood can be represented through the oxygen - hemoglobin dissociation curve, as shown in the attached image.

As we can see in the image, the curve has a sigmoid shape, and this is due to the allosteric interactions between the subunits of the hemoglobin, which change their conformation with each oxygen molecule that binds in order to increase even more the oxgen affinity. This curve is constantly shifting to the right and to the left depending on the conditions of the blood, like temperature, pH, partial pressure of carbon dioxide and the concentration of diphosphoglycerate (DPG).

When the PO2 is around 70 mmHg, as we can see in the curve, the hemoglobin is saturated around 90% or more, reaching a plateu in the curve where the oxygen is not binding as fast anymore, because there are almost no more free binding sites left in the hemoglobin molecule.

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3 years ago