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densk [106]
2 years ago
6

Which soil horizon is located closest to the earth's crust?

Biology
1 answer:
qaws [65]2 years ago
4 0

Answer:

The C horizon is located closest to the Earth's crust. Weegy

Soil is made of air, water, organic material, minerals, and weathered rock.

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What is so special about nitrogen in the atmosphere
HACTEHA [7]

Answer:

Firstly, the partial pressure of nitrogen (78%) is crucial to breathing purposes. Without this pressure, the lungs will burst and animals cannot survive.

Secondly, nitrogen is required for the formation of amino acids (building blocks of proteins) and other organic compounds that are necessary for the survival of living organisms. Principally, in the atmosphere, nitrogen is present in the form of molecular nitrogen (N2). N2 is fixed by nitrogen-fixing bacteria that form nitrates and nitrites. These molecules are then used in biochemical processes to produce proteins (amino acids) and other organic compounds. In the absence of nitrogen, these processes could become seize of limited significantly thus affecting life overall.

Thirdly, nitrogen and its derivatives act as greenhouse gases that maintain the Earth's temperature within a range that supports life. Yes, the increased abundance of nitrous oxides is not good because of acid rain and other issues, however, still, the presence of nitrogen is important for life on this planet.

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3 years ago
What is the difference between Deforestation and reforestation?
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deforestation is when an area of trees is cleared. reforestation is when a bunch of trees are planted and grown to revive what once was an area of trees.

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3 years ago
Review: Which stage of aerobic respiration produces the largest amount of ATP
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2 years ago
The army cutworm moth is a critical source of fat for many of yellowstone national park's grizzly bears; they overturnrocks to f
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3 years ago
How can we predict which elements are reactive under normal conditions and which are unreactive?​
mr_godi [17]

Answer:

We can predict or comment about reactivity of elements by taking into consideration their electronic configuration that imparts stability or un-stability to an atom.

Explanation:

Reactivity : It refers to the affinity of a substance to combine with other substance .

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In terms of metals or non metals it can be defined as tendency to loose or gain electrons .

  • On the basis of it ,we can easily make out or comment about the reactivity of element (metal or non metal ) .Like ,if an element has completely filled outermost shell or we can say have stable electronic configuration then it is already stable .Therefore , it won't react with any other element .
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3 years ago
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