Which of these is an environmental change that occurs rapidly?

a. forest succession

b. decomposition

c. tree growth

d. volcanic eruption

Correct Answer is D.

Explanation:

Forest succession  is cyclic process which occurs in various stages.Forest succession takes place when one species of plant replaces another species of plant It occurs gradually.It is not rapid change.

Decompositon:

Decomposition takes saveral years it is not a rapid change

Tree growth

Tree growth is also not a rapid change

Volcanic eruption:Volcanic eruption occurs rapidly

wire in brush may conduct electricity from cell to drill and vice versa electrc shock possible

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia