The correct option is D.
When one is talking about comparing, one is referring to noticing the distinctions or differences between two things. In the question given above, sound quality is the factor that is been compared. To compare sound quality of piano, two pianos are needed. The sound quality is compared by playing the same note on two different pianos at the same volume and then decide on the piano whose sound quality is better.
Answer:
The population is decrasing
Explanation:
As we can see from the chart, the diversity of animals in Africa are being affected year after year. In 10 year gap 53,000 lions, 42,500 cheetahs and 12,500 zebras are dead and this is a dangerous sign.
Answer:
Aye i know this Cholesterol/HDL ratio — calculated by dividing the HDL-C result into the total cholesterol result; a higher ratio indicates a higher risk of heart disease while a lower ratio indicates a lower risk. so no Higher levels would make a higher risk for cardiovascualr diease. I hope i helped :)
Explanation:
The maintenance of an organisms internal environment within certain limits
