An officer (police officer) is someone who fights against crime, and helps prevent it from happening. A criminal starts crime, and causes trouble for the police officers.
Answer:
Biofertilizers are the substance that contains microbes, which helps in promoting the growth of plants and trees by increasing the supply of essential nutrients to the plants.
Explanation:
I wasn’t sure how to properly answer the question which later developed into my failure of the quiz.
The conventional rule is to take the plural form of the verb when two nouns are joined by the conjunction 'and'. However, there are exceptions. Only then can you break the rule.
When the two nouns refer to one thing only, then you can use the single form. For example: The president and the CEO joins the meeting today. In this example, the president and CEO apply to one person only. Hence, you use the singular form of the verb.
