Question

question 15 of 20 which two activities are practical applications of magnetism? a. hammering steel nails into wooden boards b. using the north star to find which way is south c. separating steel nails from aluminum nails d. finding which way is north with a compass

Explanation:

Steel is magnetic and aluminum is not, so a magnet can separate steel nails from aluminum nails. A compass works based on Earth's magnetic field to show directions. Hammering nails is a mechanical action, and using the North - Star is an astronomical navigation method not related to magnetism.

Answer:

C. Separating steel nails from aluminum nails, D. Finding which way is north with a compass