Answer:
b if wrong sorry
but I am sure answer is b
Increased in pitch (frequency). It's the doppler effect.
Boyle's law states that the relationship between pressure and volume of a fixed amount of gas at a fixed temperature is inversely proportional. This means that the higher the pressure, the lower the volume, in a proportional relationship. Therefore, of the statements listed, b: 'the temperature and the number of molecules must remain constant for the law to apply' and d: 'a<span>s the pressure of a gas increases, the volume decreases proportionally</span>' are correct.
What’s the rest of the question??
Answer:
Bacteria living in the mouth of a horse
Explanation: