<span>The carbon, oxygen, and nitrogen cycles allow vital elements to return to usable form by organisms.</span>
Answer:
D. Heavy rainfall saturated the soil and destabilized the over-steepened slope.
Explanation:
The mud slide must have occurred in La Conchita California due to heavy rainfall which saturated the soil and destabilized the over-steepened slope.
Mud slide or mud flow is a form of mass wasting in which slope moves downward due to instability of the materials. They usually influenced by the effect of gravity on steep slopes.
- Prior to the mass moving event on the in the county, there was an unprecedented 14-15days streak of rainfall.
- The rain saturated and lubricated the soil bringing a reduction in their cohesion and ultimate movement.
- This led to the sliding down of the masses on the slope.
Answer:
C. The greater an element's density, the smaller the amount of it found in the crust
Explanation:
The layering of the Earth happened because of the different densities of the elements from which it was made. The denser elements started to sink deeper, the elements with medium density occupied the central part, and the elements with the smallest density remained at the surface. This resulted in the formation of the three basic layers of the Earth, core, mantle and crust. The core is composed of the densest elements, the mantle of the ones with medium density, and the crust from the ones with smallest density.
Obviously True*
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