The pH of seawater is about 8.1, making it alkaline.
The average pH of sea water is about 8.1 but it can also range between the pH value 7.9 to 9.0 as the result of the various activities that happen in the water. At this pH range, HCO3 ions are the major ions that are present, but as the pH of the water increases, the carbonate ions levels also increases, thus, when carbon dioxide dissolves in water it makes the water to become acidic.
Observations are recording something that is already there
(qualitative and qauntitative)
an inference is an assumption or conclusion that is logically made
C, we went over this today.
c. Facial expressions coupled with effective responses
Explanation:
Emotions are an important aspect of human life. Research on emotions has produced several discoveries which led to important real world applications.
- an emotion is the result of the arousal as experienced
- universal facial expressions of seven emotions
- anger, contempt, disgust, fear, joy, sadness, and surprise
- when emotions are experienced even a blind person produces the same facial expressions
Answer: Sickle-cell disease
Explanation:
Sickle-cell disease is characterized by the presence of a sickle shaped red blood cell, due to the substitution of glutamate with valine in the amino acid sequence of the protein globin portion.
Hence, the sickled shaped globin is unable to transport oxygen efficiently to body tissues, resulting in malfunction of the red blood cell.