Math
what is the definition of mass?
a coherent, typically large body of matter with no definite shape.
what is a landform that has steep, sloping sides and sharp or rounded ridges,
What is a mountain?
what is another name for Carbon dioxide?
what is CO2?
What is a landform that is a low area of land between hills or mountains, typically with a river or stream flowing through it.
What is a valley?
what is the definition of the word atom?
the basic unit of a chemical element.
what is a period in time where humans used, and made stone tools
What is the Stone Age?
what is malleability?
the ability to form into sheets.
what is the period that was the final stage of cultural evolution or technological development among prehistoric humans.
What is the Neolithic Period?
what is the atomic mass of nitrogen
14.0067 u.