Question

Which of these sentences uses correct capitalization? Death Valley, the lowest point in the United States, is located in the Mojave Desert. Death Valley, the lowest point in the United States, is located in the mojave desert. Death Valley, the lowest point in the United States, is located in the Mojave desert. Death valley, the lowest point in the United States, is located in the Mojave Desert.

Answer 1

The first one is correct. All proper nouns are supposed to be capitalized.