Which of the following is part of the cell theory? a. cells are able to make new organisms. b. cells are independent structures. c. all cells are the same. d. all cells are produced from other cells.

Many state and local authorities are making laws regarding recreation on lakes, rivers, and oceans to reduce water pollution. why would lawmakers need to consult with scientists before making these laws? a) to make scientists feel important b) so that the laws reduce pollution by a sufficient amount c) so that parks and lakefront facilities will still make large profits d) so that the public will believe that the laws are important to follow

Ineed to know why d is the correct answer asap

What is hydroelectric power produced by?