Final answer:
The common nouns in the sentence 'China is a huge country with a wide range of landforms' are 'country' and 'landforms'. 'China' is a proper noun.
Step-by-step explanation:
In the sentence "China is a huge country with a wide range of landforms," the common nouns are 'country' and 'landforms'. These nouns are common because they refer to a general item or concept rather than a specific name, which is reserved for proper nouns. In contrast, 'China' is a proper noun because it specifies the name of a particular place.
Common nouns are general names for people, places, or things and do not require capitalization unless they begin a sentence. Proper nouns, on the other hand, are specific names for particular individuals, places, or entities and always require capitalization.
The term 'huge' is an adjective describing the size of the country, and it is not a noun. The sentence provided showcases the geographically diverse nature of China, highlighting its expansive size and variety of geographical features without getting into the more complex details of China's population, history, or politics.