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Plant And Soil Science MCQ

Plant And Soil Science

1. Organisms contribute to soils formation by ________.

Answer

Correct Answer: None of these

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2. ________ is a soil texture in which none of the three main soil separates dominates the other two.

Answer

Correct Answer: Loam

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3. Most atmospheric free nitrogen is cycled to earth by means of ________.

Answer

Correct Answer: Assimilation through plants

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4. Roughly one half of the volume of an ""average"" soil type is composed of ________.

Answer

Correct Answer: Pore spaces

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5. Cellular respiration occurs within the _________ in a cell.

Answer

Correct Answer: Mitochondria

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6. The only type of growth in most monocots is ____________________.

Answer

Correct Answer: Primary growth

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7. Surface ocean currents ___.

Answer

Correct Answer: All of these

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8. The fali compound was formed in the shape of a circle for the purpose of ____________.

Answer

Correct Answer: Alignment with objects of cosmic significance

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9. You might find _____ in the arctic.

Answer

Correct Answer: Xerophytes

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10. Cytokinesis refers to ________.

Answer

Correct Answer: Division of cytoplasm

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11. The weathered layer of loose inorganic material overlaying unfragmented rock below is ________.

Answer

Correct Answer: Regolith

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