I believe it will be:
cccff
Answer:
:)
Explanation:
Working slowly over many years, groundwater travels along small cracks. The water dissolves and carries away the solid rock. This gradually enlarges the cracks.
Answer:
El corona virus podría afectar a la economía mundial de tres maneras principales: afectando directamente a la producción, creando trastornos en la cadena de suministro y en el mercado, y por su impacto financiero en las empresas y los mercados financieros. Sin embargo, mucho depende de la reacción del público a la enfermedad
Explanation:
Answer:
Helium
Explanation:
The sun produces energy by fusing hydrogen atoms into helium atoms. This is a nuclear fusion that occurs at the suns core.
Answer:
Nanotechnology helps to improve viscous fingering and the nano-particles can transmit through nanopores of sandstone which helps to increase the recovery by decreasing the surface tension between oil and water. The pore spaces are very fine so water molecules cannot penetrate through all of them in order to push the oil. This is why the nano-particles such as iron (Fe) and Silicon (Si) are used with distilled water. These particles can easily move through the interconnected pores and thereby pushes the oil to move out of it. It is a widely accepted concept in Enhanced Oil Recovery (EOR).
