Q: Since eddy currents and magnetic damping occur only in conductors, recycling centers can use these to separate metals from other materials? Choices: - particles - cranes - alloys - magnets A:
magnets

(Question)
Q: The substances that comprise heterogeneous mixtures can also be separated by what means? Choices: - thermal - chemical - atmospheric - physical A:
(Answer)
physical

Ques: Q: Electrons flow through wires to create what? Choices: - electromagnetism - hydroelectric power - balanced reaction - electric current A:
Ans: electric current

(Q).
Q: At high pressures, how are the molecules of a gas crowded? Choices: - few together - further apart - small together - closer together A:
(A).
closer together

Ques:Q: Why is it necessary to maintain proper levels of cations in intercellular fluids? Choices: - cell division - reverse homeostasis - for digestion - keep cells healthy A:

Ans:keep cells healthy

Q: Dutch scientist christiaan huygens' principle of what states that every point on a wavefront is a source of wavelets that spread out in the forward direction at the speed of the wave itself? Choices: - electromagnetic dynamics - energy propagation - wave dynamics - wave propagation A:
wave propagation