What layer of soil is closest to the surface?

Answer 1

O layer

O layer, also known as the organic layer, is primarily made up of organically rich matter, which includes partially or fully decomposed plant materials. Decomposition occurs in this layer due to interactions with the atmosphere and oxygen.

The A layer, which is mostly mineral soil formed from mother (parent) material, is found beneath the O layer and is distinguished by its dark color due to organic layer leaching from the O layer.

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Answer 2

The top layer of soil, closest to the surface, is called the "topsoil" layer.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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