The O horizon, which is found only in some soil profiles, is an oxygen-rich layer.

Answer the following statement true (T) or false (F)


False

The O horizon is the uppermost soil layer found in some soil profiles. It is exceptionally rich in organic matter because the ground in these conditions is typically saturated with water; oxygen levels within this soil zone are at a minimum.

Environmental & Atmospheric Sciences

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The contact between the shale, which dominates the bottom part of this sedimentary sequence, and the sandstone, which dominates the upper part, is best described as

A. blurry. B. sharp. C. gradational.

Environmental & Atmospheric Sciences

A solid is not considered fluid because

A. its atoms or molecules are bound as close together as possible. B. its atoms or molecules are under too much pressure. C. of the fixed arrangement of its atoms or molecules. D. of the heavy nature of its atoms or molecules.

Environmental & Atmospheric Sciences

Which of the following is true of anabolism?

A) It is endothermic. B) It is exothermic. C) It can be either endothermic or exothermic. D) It is neither endothermic nor exothermic.

Environmental & Atmospheric Sciences

The continental shelf contains about 90% of all ______________ ______________

Fill in the blanks with correct word

Environmental & Atmospheric Sciences