I'm going to say that Jane Goodall's experience and education made her a great scientist when she got older and that she helped others learn the same way she did.
The correct answers to the following questions are :
(1) Vertical columns in the periodic table indicate D.groups and families
(2) families of elements includes A.metals and noble gases
(3) <span>the atomic mass of many elements not a whole number because </span>B.An element may have isotopes with different numbers of neutrons.
Answer: It is amazing that the oysters <u>create </u>beautiful pearls
It means conditions that are on the margin, the margin being that region of the operational envelope that is right on the edge between acceptable and unacceptable.
