A mercury-in-glass thermometer is most likely to contain alcohol. However, due to safety concerns, many modern thermometers use alcohol-based solutions or other materials instead of mercury.
mercury
Most likely, as most food doesn't contain mango. Ask the Air Force.
living things are most likely to contain organic compounds
No, most instanst thermometers used for cooking are digital and therefore don't contain mercury. There may be some older style thermometers that do contain mercury.
Many do, but not all. Most barometers that people would have in their homes are aneroid barometers, which don't contain any mercury.
No, modern batteries do not contain mercury. Mercury is a toxic material and is no longer used in most consumer batteries due to environmental and health concerns.
A speaker is most likely to contain an electromagnet to produce sound by vibrating a diaphragm.
Most thermometers used to contain Mercury until it was found to be toxic.
most likely not
Liquid mercury
Most food that contain high levels of fat contain a lot of cholesterol. Probably the most common food that contains cholesterol are eggs.