Garbologists Have Discovered That Trash in Landfills Is Slow to Decompose.Why

question 41

Multiple Choice

Garbologists have discovered that trash in landfills is slow to decompose.Why is this?

• A) Trash is compacted so tightly that the warm temperatures foster the growth of mold.
• B) Trash is compacted so tightly that sunlight,water,and air are unable to reach it.
• C) Measures enacted to prevent landfill pollution slow decomposition.
• D) Trash is constantly mixed and turned over by bulldozers.
• E) Methods of determining this are faulty;waste in landfills does decompose quickly.

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Definitions:

Neuron Polarity

The structural and functional difference between the axon and dendrites of a neuron, which determines the direction of nerve impulse transmission.

Potential Difference

The difference in electric potential energy per unit charge between two points in a circuit.

Voltage-Gated Channels

Protein channels in cell membranes that open or close in response to changes in electrical potential, allowing ions to pass in and out of the cell.

Repolarization

The process by which cells, particularly nerve and muscle cells, restore their membrane potential to a resting state after depolarization.