Physical Barriers to Communication Technology
Handling physical barriers when using mobile phones and radios
5 Pillars of Total Defence
5 Pillars of Total Defence.
(Ed. Note: "Defense" is preferred in American English, and "defence" is preferred in all other main varieties of English)
Match the correct pillar to the description.
Folk, Pop, and Material Culture
Unit 4 Review Game : Folk vs. Pop vs. Material Culture