Which of these best explains how solid waste can harm wildlife? A. Bacteria are introduced to break down hydrocarbons in an oil spill.
B. An increased growth in microorganisms results in oxygen
depletion.
C. The mercury contained in fish builds up in animals that eat the
fish.
O D. Aquatic animals drown after getting tangled in fishing line.

Athin nonconducting rod with a uniform distribution of positive charge q is bent into a circle of radius r. the central perpendicular axis through the ring is a z-axis, with the origin at the center of the ring. a) what is the magnitude of the electric field due to the rod at z = 0? n/c (b) what is the magnitude of the electric field due to the rod at z = infinity? n/c (c) in terms of r, at what positive value of z is that magnitude maximum? r (d) if r = 4.00 cm and q = 9.00 µc, what is the maximum magnitude? n/c