Viral meningitis: Meningitis caused by many viruses is usually contagious. However, certain viruses that are transmitted by mosquitoes are usually not spread person to person, so they are not contagious.
3] Heat transfers through the glass by conduction 4] Heat transfers from the glass to the outside air via convection. If the temperature differences are small and there are no winds or drafts, transfer of heat to/from air/glass will be by conduction.
Strictly speaking, no. 1  Conduction. Heat is transferred through direct contact, e.g. your hand touching a stove.  Convection. Heat is transferred by a moving fluid in contact with a solid, e.g. a breeze on a summer day. It's actually a little more complicated than this, because conduction plays a large role still.