Sentence examples for is highest from inspiring English sources

"is highest" is correct and can be used in written English.
It is usually used to compare the level or amount of something to other things, and to indicate that a particular thing has the most or greatest level or amount. For example: - "The temperature in the desert is highest during the summer months." - "Out of all the countries in the world, China's population is highest." - "On the graph, the blue line represents the highest sales numbers." - "In terms of education, Finland's ranking is highest among European countries." - "The mountain peak is highest in the morning before the fog rolls in."