To what other kind of "The Leap" might the title refer?

1)Her first physical leap is that of one of the Flying Avalons as she saves her life in the storm that toppled the big top.

2)Her second physical leap is that of climbing a tree and leaping from a branch that hangs over the roof of her house so that she can rescue her daughter from the burning bedroom

3)Her figurative leap is that of learning to read in the hospital where she meets her second husband, the physician who set her arm and read to her while it mended.

Anna Avalon has told her daughter that as one flies through the air there is definitely time to think. "I know that she's right." The narrator's mother has

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the dark variety, as they are not visible on the dark tree barks

explanation:

oxygen is the first element in group 16 (via) of the periodic table. the periodic table is a chart that shows how chemical elements are related to each other. the elements in group 16 are said to belong to the chalcogen family. other elements in this group include  sulfur, selenium, tellurium,  and  polonium.  the name chalcogen comes from the greek word  chalkos,  meaning "ore." the first two members of the family, oxygen and sulfur, are found in most ores.

oxygen is by far the most abundant element in the earth's crust. nearly half of all the atoms in the earth are oxygen atoms. oxygen also makes up about one-fifth of the earth's atmosphere. nearly 90 percent of the weight of the oceans is due to oxygen. in addition, oxygen is thought to be the third most abundant element in the universe and in the solar system.