An area has experienced weathering and erosion for many years. Over time, some rock formations have been left behind. What is a reasonable conclusion to draw? The rock that has been carried away is very hard and resistant to weathering & erosion
The rock formations are made of rock that are very easily weathered and eroded
Humans have protected the rock formations
The rock formations are made of rock that are resistant to weathering and erosion
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Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.

During the past 150 years in the united states, how did energy consumption compare to population growth

Aheat engine that operates on a carnot cycle has an efficiency of 0.420 when its low-temperature reservoir is at 10 ∘c.part aby how many degrees celsius must you increase the temperature of the high-temperature reservoir to increase the efficiency to 0.600 if you continue to use the same low-temperature reservoir?