Which of the following would be examples of abiotic factors in a mountain river ecosystem? fish, algae, and sand

sand, water, and fish

sand, water, and minerals

water, fish, and algae

Mike wants to negatively charge a small rubber ball. which of these methods would successfully charge the ball? a) heating the ball in boiling water b) running the ball over a strong magnet c) rubbing the ball back and forth on carpet d) dropping the ball from a tall bulding submit hint forces in nature (s8p5.b) conductors and insulators id: 10402 hint electrons must be transferred.