Baby elizabeth has a low activity level, is somewhat negative, and displays a low intensity of mood. she would best be described as

slow-to-warm-up.

Explanation:

Baby Elizabeth has the temperament described as slow-to-warm-up. These babies have difficulties relating to others, are very shy and do not get used to new experiences. These babies tend to reject and ignore any new people or things, exhibit low moods, handle life cautiously, a little negatively, usually observe everything around them, and are not very active children. These babies end up being overrated and when this occurs they tend to move away.

                                                        water

a colorless, transparent, odorless, tasteless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms.

                                                        halon  

any of a number of unreactive gaseous compounds of carbon with bromine and other halogens, used in fire extinguishers, but now known to damage the ozone layer.

                                                  dry chemical

extinguishing agent used on class a, class b, and class c fires.

                                                  carbon dioxide

a colorless, odorless gas produced by burning carbon and organic compounds and by respiration. it is naturally present in air (about 0.03 percent) and is absorbed by plants in photosynthesis.