The term mass wasting describes

glacial movement of boulders.

islands sinking into the ocean.

the process by which an area becomes a desert.

down slope movement of a landslide.

The term mass wasting describes "down slope movement of a landslide".

Option: D

Explanation:

Mass loss or wasting is understood as slope motion or mass movement, it is the geomorphic mechanism through which regolith, soil, sand and rock travel downslope usually as a solid, continuous, or discontinuous mass, generally below the force of gravity, often with flow properties as in debris flows and mud flows.

Falls, rotational and translational slides, fluxes, and creep seem to be the most common types of mass-wasting. Falls are sudden movements of rock detaching itself from steep slopes or cliffs. Separate the rocks around known natural breaks like fractures or bedding planes. Movements occur as free-falls, bounces and rolls.

step 1: initiation

initiation is the beginning of transcription. it occurs when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

step 2: elongation

elongation is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

step 3: termination

termination is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.

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