Answer:
Fertilizer is added to soils to increase plant productivity. A common type of fertilizer is called NPK fertilizer because of its ingredients: nitrogen (N), phosphorus (P), and potassium (K).
Explanation:
Answer:
The movement of ions or molecules across a cell membrane into a region of higher concentration
C. Wind erosion is caused by the wind blowing loose particles of dirt and/or sand from bare and flat lands. Plant structure above ground (leaves and stem) act to shield the wind and plant roots act as anchors to hold down the soil to reduce the effects of wind erosion.
Answer:
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Explanation:
Higher level taxon indicate larger numbers of sub-taxon. This means that time must have passed, allowing sub-taxon to evolve. Therefore, larger, higher taxon must be older to allow sub-taxon to appear.