An electromagnet is a soft metal core which is made into a magnet by passing the electric current through a coil which is surrounding it.
Answer:
Magmatism is the emplacement of magma within and at the surface of the outer layers of a terrestrial planet, which solidifies as igneous rocks. ... On Earth, magma forms by partial melting of silicate rocks either in the mantle, continental or oceanic crust.
Explanation:
The correct answer should be pollutant
UV radiation pollutes the environment and that can lead to mutation in humans. It's a mutagen to humans, but a pollutant to the environment.
F is force, m is mass and a<span> is acceleration. The math behind this is quite simple. If you double the force, you double the acceleration, but if you double the mass, you cut the acceleration in half.</span>
Human ear can hear only the sounds having frequency from 20 Hz-20,000Hz but the simple pendulum produces a sound having frequency much less than 20Hz so we cannot hear it.
