Which of the following substances is a mineral?

Pastoral farming is best described as a. a method of raising livestock and moving herds b. an african method of agriculture c. a method of cultivating crops on poor soils d. a common method of desert farming select the best answer from the choices provided a b c d

To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.

At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver