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AlladinOne [14]
3 years ago
15

Characteristics of humus in soil profile​

Biology
1 answer:
Ad libitum [116K]3 years ago
5 0

Answer:

Humus has a characteristic black or dark brown color and is an accumulation of organic carbon. Besides the three major soil horizons of (A) surface/topsoil, (B) subsoil, and (C) substratum, some soils have an organic horizon (O) on the very surface.

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Answer:

It has gotten worse.

Explanation:

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In the process of genetic engineering, what is the correct order of the steps?
jeka94
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EXPERIMENT 1: How many fish with blue tags
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Which of the following will NOT cause mass extinction?
ArbitrLikvidat [17]

Answer:

D. None of the above

Explanation:

<u>Reason that Drastic Change in weather may cause mass extinction</u>

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<u>Reason that Geological change would play a large role in mass extinctions</u>

While the Geography is constantly changing, large abrupt changes would cause a upheaval and may upset the population, leading to a depletion of resources or even a sudden destruction of part/all of the population. For example, an earthquake may kill large amounts of animals, and the destruction of the greenery in the area may severely limit the amount of food/decrease the primary consumer's populations, leading to a starvation.

~

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5 0
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