Dissolved in many gasolines are cleaning agents and anti-knock additives. these cleaning agents and additives are an example of a) solids. b) solutes. c) solutions. d) solvents.

B) Solutes

Explanation:

Binary solution is a homogeneous mixture of two components called as solute and solvent.

Solute is the component which is present in smaller proportion and is solid for solid in liquid solution and solvent is the component which is present in larger proportion.

If a liquid is dissolved in a liquid, it is called as emulsion.

If a solid is dissolved in a liquid, it is called as solid solution.

Thus gasoline being in larger quantity and cleaning or anti knock additives in smaller quantities, they are respectively termed as solvent and solute.

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