<span>D.) glockenspiel This is because of the different pitches that follow along with any not of the instrument. Each part has a different pitch, therefore, is not definite. </span>
Answer:
The air at higher altitudes is colder, less dense, and contains fewer oxygen molecules. This means that you need to take more breaths in order to get the same amount of oxygen as you would at lower altitudes. The higher the elevation, the more difficult breathing becomes
Explanation:
The answer is a)growth and development is a gradual
Tone
-because the tone is how someone says something.