Match each soil horizon to the description of its formation horizon A

parent material barely affected by soil

formation process

horizon

undergoes the most change, barely

resembles parent material

accumulation of organic material

horizon B

decomposed organic material mixes with

highly weathered parent material

horizon

{answer found. it's (3 ) }which statement describes the cell cycle? (1)the cell cycle is a process in which one cell divides into four genetically different cells. (2)the cell cycle is a process in which one cell divides into two genetically different cells. (3)the cell cycle is a process in which one cell divides into two genetically identical cells. (4)the cell cycle is a process in which one cell divides into four genetically identical cells.

What’s the student’s scientific question

18. over time, how do sand dunes tend to migrate? a. perpendicular to the movement of the wind b. in the same direction as the wind blows c. toward the wind d. in random directions