Como afectan Los cambios del ciclo hidrológico al ambiente y a la vida del ser humano​

Which action is a reflex action. a. asking for coffe in a cold climate b. blinking when light is flashed in the eyes c. drinking water when thirsty. d. swallowing food e. taking an exam

In the 1500s, an astronomer developed a new model of the universe. this model had the sun at the center of the universe, not earth. who was this astronomer?

Which kind of electrical charge is found on a hydrogen atom of a polar water molecule