How might rising atmospheric co2 concentrations lower the ph of the oceans?

What is true for a substance that releases energy

Suppose you increase your walking speed from 7 m/s to 15 m/s in a period of 1 s. what is your acceleration?

An electron moved from a lower energy level to a higher energy level. what most likely happened during the transition? a random amount of light was released. a fixed amount of energy was absorbed. a fixed amount of energy was released. a random amount of light was absorbed.