Early humans used rocks as tools to make other things as well as to construct buildings. why was it better for them to use rocks than
another material such as wood?

Rocks are durable and can get pretty sharp.

Explanation:

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is