The graph depicts the velocity and times of Elan and Anna during a race. A graph with horizontal axis time (seconds) and vertical axis velocity (meters per second). A green line labeled Anna runs in straight segments from 0 seconds 0 meters per second to 1 second 6 meters per second to 10 seconds 24 meters per second. A red line labeled Elan runs in straight segments from 0 seconds 0 meters for second to 1 second 1 meter per second to 3 seconds 10 meters per second to 6 seconds 10 meters per second to 8 seconds 20 meters per second to 10 seconds 25 meters per second. Which best depicts the data? From 0 to 2 seconds, Anna experienced negative acceleration. From 3 to 6 seconds, Elan accelerated while Anna did not. From 6 to 8 seconds, Elan accelerated faster than Anna. From 8 to 10 seconds, Elan experienced negative acceleration.

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.