Alake is surrounded by hills covered with trees and shrubs. which statement correctly describes how a change to the plants in this are will affect this environment? a. adding plants to the hillsides will increase sedimentation in the lake. b. adding plants to the edge of the lake will increase erosion by the lake. c. removing plants from hillsides will increase erosion on the hills. d. removing plants from the edge of the lake will increase sedimentation on the hills

protons in

c)as speed changes, wavelength and frequency change.

everything changes!

less than one you can't create energy

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