Answer:
a. The definite article "the" was not used in sentence 1 because the word "industry" was used as a general term to describe California's economy. While the definite article "the" is used in sentence 2 in order to be specific in the area of "the industries" that California is famous with.
b.
1. He is proud of the income he makes monthly.
2. The success of your business lies in your determination and passion.
3. The jobs they offer are high paying jobs.
4. The technology used in building this system is highly sophisticated.
5. The drought they experienced last year is greater than that of this year.
6. The climate of this 21st century is changing rapidly.
c. The nouns in (a) is different from the nouns in (b) because the noun "industry" and "industries" are concrete nouns while the other nouns are abstract nouns.
Explanation:
The definite article is known as "the". It is actually used when being specific about something. It usually comes before a noun in a sentence. It is most commonly used in English Language.
Concrete nouns are countable while abstract nouns are not. Abstract nouns refer to the nouns that we cannot see, smell, hear, touch, or taste. Concrete nuns can be seen and touched.
