Answer:
when there is a wide usage by people
Explanation:
Intonation refers to <span>the change in the pitch (high or low sound) of the voice. An example of intonation is when a person makes a statement or asks a question. The difference in pitch at the end of a statement and question show the importance of intonation. When reading poems, intonation is also useful in the dynamics of the speaker's attitude and emotions.</span>
Answer:
True.
Explanation:
In Biology, blood pH can be defined as a measure of the hydrogen ion (H¯) concentration of blood i.e the level of alkalinity or acidity of blood.
Basically, the normal blood pH of a human being should be between 7.35 and 7.45.
Hence, one of the ways in which the body regulates blood pH is with proteins by accepting and releasing hydrogen ions. Typically, when the blood pH falls, the hydrogen ions (H¯) are accepted (absorbed) while hydrogen ions are released when the blood pH rises.
A protein such as haemoglobin which makes up a composition of the red blood cells, binds an amount of acid required to regulate blood pH.
Hence, the substance that makes the blood red is an iron containing protein known as hemoglobin.
Answer:
The tree's limbs were steel poles.
The frequent purring was yet a gentle roar.
The arrest was an incrimination of a soldier.
