Question

How does carbon dioxide affect ocean water?(1 point) Responses It decreases the amount of water. It decreases the amount of water. It decreases pH. It decreases pH. It creates more water. It creates more water. It increases pH

Answer 1

When carbon dioxide is in ocean water it bonds to carbonate, preventing its use by(1 point) Responses coral reefs and shellfish. coral reefs and shellfish. whales and currents. whales and currents. coral reefs and currents. coral reefs and currents. whales and shellfish.

Answer 2

Which of the following describes a negative correlation? (1 point) Responses As the pond weed population decreases, the oxygen concentration of the pond decreases. As the pond weed population decreases, the oxygen concentration of the pond decreases. As the pond snail population decreases, the pond weed population increases. As the pond snail population decreases, the pond weed population increases. As the amount of fertilizer in the pond increases, the amount of algae increases. As the amount of fertilizer in the pond increases, the amount of algae increases. As the number of people visiting the pond increases, the insect population stays the same.

Answer 3

Does correlation always show causation? (1 point) Responses No, correlation between two variables does not mean that one causes the other. No, correlation between two variables does not mean that one causes the other. No, correlation between two variables is always coincidental. No, correlation between two variables is always coincidental. Yes, correlation between two variables means that one variable causes the other. Yes, correlation between two variables means that one variable causes the other. Yes, correlation and causation go hand in hand. There can’t be a relationship that is not cause-and-effect.

Answer 4

In a grassland ecosystem, grass is eaten by rabbits who are eaten by foxes. What would be the effect of rabbits dying because they are hunted? (1 point) Responses The grass population would increase, and the fox population would decrease. The grass population would increase, and the fox population would decrease. Both the grass and fox populations would increase. Both the grass and fox populations would increase. Both the grass and fox populations would decrease. Both the grass and fox populations would decrease. The grass population would decrease, and the fox population would increase.