Mr. Green wants to teach his students about an interaction between Earth's biosphere and geosphere. Mr. Green had his students collect soil samples from various areas of the school campus. The students noticed that the upper layer of the soil in
the wooded area of the campus was darker than the upper layer of the sandy playing field. Why would there be a difference in
color in the upper layer of the two soil samples?
A. The soil in the wooded area was made primarily of organic matter and not rock particles
B. The soil in the wooded area was made primarily of rock particles and not organic matter.
c. There is less erosion on the playing field due to fewer plants growing on the field.
D. There is more erosion in the wooded area due to more plants growing in the area,

Based on the topographic map of mt. st. helens, what is the contour interval if the volcano height is 2,950 m? question 2 options: 500 m 600 m 400 m 750 m

Select the correct text in the passage. the moving continents affect all subsystems on earth. which sentence identifies a potentially negative consequence of shifting continents? the supercontinent pangaea began to break up about 175 million years ago. [during this process, more coastline was exposed as the landmasses separated]. [the rearrangement and displacement of these huge landmasses resulted in the diversity of plants and animals we see on earth today]. [the movement of the plates sometimes leads to earthquakes and tsunamis]. however, over the long course of earth's history, their effects are usually minimal. in oceans, the plate movements usually lead to seafloor spreading. [seafloor spreading often results in the formation of underwater ranges of mountains].

How many inches of snow did any of you guys get last night?