The cycles within which earth's matter moves are closed systems. This means nothing is gained or lost from the system; it only changes from one form to the other. The total amount of matter on earth remains the same. Using tectonic plates as an example, divergent boundaries occur where new oceanic crust is being created. New crust is being created and simultaneously the same amount of crust is being destroyed at convergent margins.
their relative densities
Explanation:
The relative densities of the earth's materials can be inferred by the arrangement of the earth layers.
Compositionally, the earth is made up of three distinct layers; core, mantle and the crust.
- The crust is the thin outermost layer of the earth.
- The mantle straddles the zone between the core and crust.
- The core is the innermost layer of the earth.
During the formation of the earth, materials differentiated into different layers based on density.
The densest materials settled in the core and they are made up of iron and nickel metals.
The lightest materials of silicate affinity partitioned to the crust.
The mantle contained materials whose density straddles between the crust and core.
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Si la lluvia se intensifica puede tener efectos positivos como el riego de zonas de cultivo, y efectos negativos como las crecientes de los ríos que desencadenan desastres naturales. También su ausencia puede causar efectos negativos como escasez de agua.
Fenómeno natural es un concepto que se refiere a distintas manifestaciones de la naturaleza que se caracterizan por no ser provocadas por acción humana tales como:
Los fenómenos naturales pueden tener efectos negativos, positivos y neutros sobre las comunidades humanas. Por lo anterior, si las lluvias se intensifican podrían causar efectos positivos como riego de zonas de cultivo. No obstante, también puede tener efectos negativos como crecientes de ríos que desencadenen desastres naturales.
Por otra parte, la ausencia de lluvia puede causar efectos negativos dado que limitaría el acceso al recurso del agua, lo que podría afectar la vida vegetal y animal.
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Answer:
masagana
Explanation:
masagana tayo sa anyo tubing na dapat alagaan anyung lupa na ating napakinabangan ngunit .