Lenses refract light rays in toward a central point. when this lens is held close to your eye, the image is magnified and right side up. a) concave b) convex c) prismatic d) refractive

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

: )