Write a paragraph of approximately EIGHT lines to clarify why would you discourage the Future development of factories in a valley. ​

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.