How many places are there for electrons in the second shell of an atom? a. 2 b. 4 c. 8 d. 12

Which of the following describes a boom period? a. as one population increases, another population decreases. b. as one population increases, the other population also increases. c. as one population decreases, another population increases. d. as one population decreases, another population also decreases

What is the statement plant growth is affected by the color light

The same agricultural practices are used in every country of the world. select the best answer from the choices provided t f