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never [62]
2 years ago
14

In a desert, soil containing a mixture of sand and small rocks is exposed to wind erosion. Over time, how would the land surface

change?
Chemistry
2 answers:
Alecsey [184]2 years ago
5 0

The correct answer to this open question is the following.

In a desert, soil containing a mixture of sand and small rocks is exposed to wind erosion. Over time, the land surface change in that the wind picks up sediment carrying it over until falls on top of each other to form dunes.

Wind erosion affects deserts. There is no vegetation and lack of rain, so wind removes the fertile portion of the soil. Deserts are arid and dry, and the high-speed wind is a constant in these regions. Another issue of Deserts is the extreme temperatures that could be found in desertic zones. Very hot weather during the day, and very cold at night.

amid [387]2 years ago
3 0
Sand dunes would be created due to the mixture falling on each other
x
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When an arrhenius base is placed in h20 the only negative ion present in the solution is?
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2 years ago
A una mezcla de 300g, formada con 60% P/P de Hierro y 40% P/P de Arena, se le adicionan 135g de Cobre y 2,77g de Aluminio. ¿Cuál
Svetllana [295]

Answer:

\%P/P_{hierro}=41.1\%\\\\\%P/P_{arena}=24.4\%\\\\\%P/P_{cobre}=30.8\%\\\\\%P/P_{aluminio}=0.6\%

Explanation:

¡Hola!

En este caso, dado que estamos tratando con problem sobre porcentaje peso/peso de hierro, arena, cobre y aluminio, primero debemos calcular la masa inicial de estos dos primeros en la mezcla original de acuerdo con:

m_{hierro}=300g*0.60=180g\\\\m_{arena}=300*0.40=120g

Ahora si podemos calcular la masa de la mezcla final como la suma de las masas de todos los constituyentes de la mezcla:

m_T=180g+120g+135g+2.77g=437.77g

Finalmente, podemos calcular los porcentajes P/P como se muestra a continuación:

\%P/P_{hierro}=\frac{180g}{437.77g} *100\%=41.1\%\\\\\%P/P_{arena}=\frac{120g}{437.77g} *100\%=24.4\%\\\\\%P/P_{cobre}=\frac{135g}{437.77g} *100\%=30.8\%\\\\\%P/P_{aluminio}=\frac{g}{437.77g} *100\%=0.6\%

¡Saludos!

5 0
2 years ago
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